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Finding the Fourth Proportional to 77,894.84, 107,508.89 and 74,345.09

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Solution

The fourth proportional to 77,894.84, 107,508.89 and 74,345.09 is: 102,609.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,894.84 : 107,508.89 = 74,345.09 : x
  2. Step 2: Convert to fraction form
    77,894.84/107,508.89 = 74,345.09/x
  3. Step 3: Cross multiply
    77,894.84x = 107,508.89 × 74,345.09
  4. Step 4: Simplify right side
    77,894.84x = 7,992,757,751.17
  5. Step 5: Solve for x
    x = 7,992,757,751.17/77,894.84
  6. Step 6: Final answer
    x = 102,609.59

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