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Finding the Fourth Proportional to 77,767.86, 116,653.91 and 21,608.13

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Solution

The fourth proportional to 77,767.86, 116,653.91 and 21,608.13 is: 32,412.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,767.86 : 116,653.91 = 21,608.13 : x
  2. Step 2: Convert to fraction form
    77,767.86/116,653.91 = 21,608.13/x
  3. Step 3: Cross multiply
    77,767.86x = 116,653.91 × 21,608.13
  4. Step 4: Simplify right side
    77,767.86x = 2,520,672,852.29
  5. Step 5: Solve for x
    x = 2,520,672,852.29/77,767.86
  6. Step 6: Final answer
    x = 32,412.78

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