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Finding the Fourth Proportional to 123,030.60, 169,782.20 and 66,441.97

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Solution

The fourth proportional to 123,030.60, 169,782.20 and 66,441.97 is: 91,689.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,030.60 : 169,782.20 = 66,441.97 : x
  2. Step 2: Convert to fraction form
    123,030.60/169,782.20 = 66,441.97/x
  3. Step 3: Cross multiply
    123,030.60x = 169,782.20 × 66,441.97
  4. Step 4: Simplify right side
    123,030.60x = 11,280,663,838.93
  5. Step 5: Solve for x
    x = 11,280,663,838.93/123,030.60
  6. Step 6: Final answer
    x = 91,689.90

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