Finding the Fourth Proportional to 62,974.71, 86,922.45 and 42,865.25

Step by Step Solution

1. Step 1: Write the proportion equation
   62,974.71 : 86,922.45 = 42,865.25 : x
2. Step 2: Convert to fraction form
   62,974.71/86,922.45 = 42,865.25/x
3. Step 3: Cross multiply
   62,974.71x = 86,922.45 × 42,865.25
4. Step 4: Simplify right side
   62,974.71x = 3,725,952,115.25
5. Step 5: Solve for x
   x = 3,725,952,115.25/62,974.71
6. Step 6: Final answer
   x = 59,165.85