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Finding the Fourth Proportional to 212,704.02, 319,031.28 and 54,920.04

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Solution

The fourth proportional to 212,704.02, 319,031.28 and 54,920.04 is: 82,373.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,704.02 : 319,031.28 = 54,920.04 : x
  2. Step 2: Convert to fraction form
    212,704.02/319,031.28 = 54,920.04/x
  3. Step 3: Cross multiply
    212,704.02x = 319,031.28 × 54,920.04
  4. Step 4: Simplify right side
    212,704.02x = 17,521,210,658.85
  5. Step 5: Solve for x
    x = 17,521,210,658.85/212,704.02
  6. Step 6: Final answer
    x = 82,373.67

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