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Finding the Fourth Proportional to 54,958.80, 82,430.10 and 15,519.90

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Solution

The fourth proportional to 54,958.80, 82,430.10 and 15,519.90 is: 23,277.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,958.80 : 82,430.10 = 15,519.90 : x
  2. Step 2: Convert to fraction form
    54,958.80/82,430.10 = 15,519.90/x
  3. Step 3: Cross multiply
    54,958.80x = 82,430.10 × 15,519.90
  4. Step 4: Simplify right side
    54,958.80x = 1,279,306,908.99
  5. Step 5: Solve for x
    x = 1,279,306,908.99/54,958.80
  6. Step 6: Final answer
    x = 23,277.56

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