Finding the Fourth Proportional to 62,860.56, 86,702.32 and 42,682.40

Step by Step Solution

1. Step 1: Write the proportion equation
   62,860.56 : 86,702.32 = 42,682.40 : x
2. Step 2: Convert to fraction form
   62,860.56/86,702.32 = 42,682.40/x
3. Step 3: Cross multiply
   62,860.56x = 86,702.32 × 42,682.40
4. Step 4: Simplify right side
   62,860.56x = 3,700,663,103.17
5. Step 5: Solve for x
   x = 3,700,663,103.17/62,860.56
6. Step 6: Final answer
   x = 58,870.99