Finding the Fourth Proportional to 82,200.64, 113,400.88 and 48,191.92

Step by Step Solution

1. Step 1: Write the proportion equation
   82,200.64 : 113,400.88 = 48,191.92 : x
2. Step 2: Convert to fraction form
   82,200.64/113,400.88 = 48,191.92/x
3. Step 3: Cross multiply
   82,200.64x = 113,400.88 × 48,191.92
4. Step 4: Simplify right side
   82,200.64x = 5,465,006,136.89
5. Step 5: Solve for x
   x = 5,465,006,136.89/82,200.64
6. Step 6: Final answer
   x = 66,483.74