Finding the Fourth Proportional to 62,611.20, 86,436.72 and 42,575.04

Step by Step Solution

1. Step 1: Write the proportion equation
   62,611.20 : 86,436.72 = 42,575.04 : x
2. Step 2: Convert to fraction form
   62,611.20/86,436.72 = 42,575.04/x
3. Step 3: Cross multiply
   62,611.20x = 86,436.72 × 42,575.04
4. Step 4: Simplify right side
   62,611.20x = 3,680,046,811.47
5. Step 5: Solve for x
   x = 3,680,046,811.47/62,611.20
6. Step 6: Final answer
   x = 58,776.17