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Finding the Fourth Proportional to 70,900.40, 106,340.52 and 28,205.84

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Solution

The fourth proportional to 70,900.40, 106,340.52 and 28,205.84 is: 42,304.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,900.40 : 106,340.52 = 28,205.84 : x
  2. Step 2: Convert to fraction form
    70,900.40/106,340.52 = 28,205.84/x
  3. Step 3: Cross multiply
    70,900.40x = 106,340.52 × 28,205.84
  4. Step 4: Simplify right side
    70,900.40x = 2,999,423,692.64
  5. Step 5: Solve for x
    x = 2,999,423,692.64/70,900.40
  6. Step 6: Final answer
    x = 42,304.75

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