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Finding the Fourth Proportional to 52,420.79, 78,643.47 and 17,360.45

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Solution

The fourth proportional to 52,420.79, 78,643.47 and 17,360.45 is: 26,044.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,420.79 : 78,643.47 = 17,360.45 : x
  2. Step 2: Convert to fraction form
    52,420.79/78,643.47 = 17,360.45/x
  3. Step 3: Cross multiply
    52,420.79x = 78,643.47 × 17,360.45
  4. Step 4: Simplify right side
    52,420.79x = 1,365,286,028.76
  5. Step 5: Solve for x
    x = 1,365,286,028.76/52,420.79
  6. Step 6: Final answer
    x = 26,044.74

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