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Finding the Fourth Proportional to 123,577.40, 185,366.10 and 71,089.40

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Solution

The fourth proportional to 123,577.40, 185,366.10 and 71,089.40 is: 106,634.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,577.40 : 185,366.10 = 71,089.40 : x
  2. Step 2: Convert to fraction form
    123,577.40/185,366.10 = 71,089.40/x
  3. Step 3: Cross multiply
    123,577.40x = 185,366.10 × 71,089.40
  4. Step 4: Simplify right side
    123,577.40x = 13,177,564,829.34
  5. Step 5: Solve for x
    x = 13,177,564,829.34/123,577.40
  6. Step 6: Final answer
    x = 106,634.10

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