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Finding the Fourth Proportional to 84,726.77, 126,378.98 and 77,841.48

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Solution

The fourth proportional to 84,726.77, 126,378.98 and 77,841.48 is: 116,108.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,726.77 : 126,378.98 = 77,841.48 : x
  2. Step 2: Convert to fraction form
    84,726.77/126,378.98 = 77,841.48/x
  3. Step 3: Cross multiply
    84,726.77x = 126,378.98 × 77,841.48
  4. Step 4: Simplify right side
    84,726.77x = 9,837,527,303.13
  5. Step 5: Solve for x
    x = 9,837,527,303.13/84,726.77
  6. Step 6: Final answer
    x = 116,108.84

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