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Finding the Fourth Proportional to 120,572.04, 166,397.94 and 66,862.20

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Solution

The fourth proportional to 120,572.04, 166,397.94 and 66,862.20 is: 92,274.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,572.04 : 166,397.94 = 66,862.20 : x
  2. Step 2: Convert to fraction form
    120,572.04/166,397.94 = 66,862.20/x
  3. Step 3: Cross multiply
    120,572.04x = 166,397.94 × 66,862.20
  4. Step 4: Simplify right side
    120,572.04x = 11,125,732,343.87
  5. Step 5: Solve for x
    x = 11,125,732,343.87/120,572.04
  6. Step 6: Final answer
    x = 92,274.56

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