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Finding the Fourth Proportional to 70,671.95, 105,966.41 and 28,553.36

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Solution

The fourth proportional to 70,671.95, 105,966.41 and 28,553.36 is: 42,813.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,671.95 : 105,966.41 = 28,553.36 : x
  2. Step 2: Convert to fraction form
    70,671.95/105,966.41 = 28,553.36/x
  3. Step 3: Cross multiply
    70,671.95x = 105,966.41 × 28,553.36
  4. Step 4: Simplify right side
    70,671.95x = 3,025,697,052.64
  5. Step 5: Solve for x
    x = 3,025,697,052.64/70,671.95
  6. Step 6: Final answer
    x = 42,813.27

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