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Finding the Fourth Proportional to 78,826.33, 108,782.64 and 43,018.64

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Solution

The fourth proportional to 78,826.33, 108,782.64 and 43,018.64 is: 59,366.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,826.33 : 108,782.64 = 43,018.64 : x
  2. Step 2: Convert to fraction form
    78,826.33/108,782.64 = 43,018.64/x
  3. Step 3: Cross multiply
    78,826.33x = 108,782.64 × 43,018.64
  4. Step 4: Simplify right side
    78,826.33x = 4,679,681,228.41
  5. Step 5: Solve for x
    x = 4,679,681,228.41/78,826.33
  6. Step 6: Final answer
    x = 59,366.98

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