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Finding the Fourth Proportional to 79,220.28, 118,830.63 and 20,055.96

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Solution

The fourth proportional to 79,220.28, 118,830.63 and 20,055.96 is: 30,083.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,220.28 : 118,830.63 = 20,055.96 : x
  2. Step 2: Convert to fraction form
    79,220.28/118,830.63 = 20,055.96/x
  3. Step 3: Cross multiply
    79,220.28x = 118,830.63 × 20,055.96
  4. Step 4: Simplify right side
    79,220.28x = 2,383,261,667.62
  5. Step 5: Solve for x
    x = 2,383,261,667.62/79,220.28
  6. Step 6: Final answer
    x = 30,083.98

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