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Finding the Fourth Proportional to 77,678.40, 107,159.52 and 45,826.08

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Solution

The fourth proportional to 77,678.40, 107,159.52 and 45,826.08 is: 63,218.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,678.40 : 107,159.52 = 45,826.08 : x
  2. Step 2: Convert to fraction form
    77,678.40/107,159.52 = 45,826.08/x
  3. Step 3: Cross multiply
    77,678.40x = 107,159.52 × 45,826.08
  4. Step 4: Simplify right side
    77,678.40x = 4,910,700,736.28
  5. Step 5: Solve for x
    x = 4,910,700,736.28/77,678.40
  6. Step 6: Final answer
    x = 63,218.36

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