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Finding the Fourth Proportional to 123,459.82, 170,374.56 and 66,871.21

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Solution

The fourth proportional to 123,459.82, 170,374.56 and 66,871.21 is: 92,282.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,459.82 : 170,374.56 = 66,871.21 : x
  2. Step 2: Convert to fraction form
    123,459.82/170,374.56 = 66,871.21/x
  3. Step 3: Cross multiply
    123,459.82x = 170,374.56 × 66,871.21
  4. Step 4: Simplify right side
    123,459.82x = 11,393,152,980.42
  5. Step 5: Solve for x
    x = 11,393,152,980.42/123,459.82
  6. Step 6: Final answer
    x = 92,282.27

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