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Finding the Fourth Proportional to 261,561.63, 392,346.09 and 74,573.13

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Solution

The fourth proportional to 261,561.63, 392,346.09 and 74,573.13 is: 111,860.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,561.63 : 392,346.09 = 74,573.13 : x
  2. Step 2: Convert to fraction form
    261,561.63/392,346.09 = 74,573.13/x
  3. Step 3: Cross multiply
    261,561.63x = 392,346.09 × 74,573.13
  4. Step 4: Simplify right side
    261,561.63x = 29,258,475,974.56
  5. Step 5: Solve for x
    x = 29,258,475,974.56/261,561.63
  6. Step 6: Final answer
    x = 111,860.73

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