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Finding the Fourth Proportional to 77,924.78, 107,486.33 and 54,042.74

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Solution

The fourth proportional to 77,924.78, 107,486.33 and 54,042.74 is: 74,544.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,924.78 : 107,486.33 = 54,042.74 : x
  2. Step 2: Convert to fraction form
    77,924.78/107,486.33 = 54,042.74/x
  3. Step 3: Cross multiply
    77,924.78x = 107,486.33 × 54,042.74
  4. Step 4: Simplify right side
    77,924.78x = 5,808,856,189.57
  5. Step 5: Solve for x
    x = 5,808,856,189.57/77,924.78
  6. Step 6: Final answer
    x = 74,544.40

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