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Finding the Fourth Proportional to 123,031.58, 169,783.58 and 66,442.96

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Solution

The fourth proportional to 123,031.58, 169,783.58 and 66,442.96 is: 91,691.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,031.58 : 169,783.58 = 66,442.96 : x
  2. Step 2: Convert to fraction form
    123,031.58/169,783.58 = 66,442.96/x
  3. Step 3: Cross multiply
    123,031.58x = 169,783.58 × 66,442.96
  4. Step 4: Simplify right side
    123,031.58x = 11,280,923,614.60
  5. Step 5: Solve for x
    x = 11,280,923,614.60/123,031.58
  6. Step 6: Final answer
    x = 91,691.28

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