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Finding the Fourth Proportional to 15,771.72, 23,669.31 and 7,454.29

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Solution

The fourth proportional to 15,771.72, 23,669.31 and 7,454.29 is: 11,186.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,771.72 : 23,669.31 = 7,454.29 : x
  2. Step 2: Convert to fraction form
    15,771.72/23,669.31 = 7,454.29/x
  3. Step 3: Cross multiply
    15,771.72x = 23,669.31 × 7,454.29
  4. Step 4: Simplify right side
    15,771.72x = 176,437,900.84
  5. Step 5: Solve for x
    x = 176,437,900.84/15,771.72
  6. Step 6: Final answer
    x = 11,186.98

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