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Finding the Fourth Proportional to 70,638.84, 105,941.79 and 26,286.48

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Solution

The fourth proportional to 70,638.84, 105,941.79 and 26,286.48 is: 39,423.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,638.84 : 105,941.79 = 26,286.48 : x
  2. Step 2: Convert to fraction form
    70,638.84/105,941.79 = 26,286.48/x
  3. Step 3: Cross multiply
    70,638.84x = 105,941.79 × 26,286.48
  4. Step 4: Simplify right side
    70,638.84x = 2,784,836,744.00
  5. Step 5: Solve for x
    x = 2,784,836,744.00/70,638.84
  6. Step 6: Final answer
    x = 39,423.59

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