Finding the Fourth Proportional to 82,200.04, 113,436.10 and 57,064.12

Step by Step Solution

1. Step 1: Write the proportion equation
   82,200.04 : 113,436.10 = 57,064.12 : x
2. Step 2: Convert to fraction form
   82,200.04/113,436.10 = 57,064.12/x
3. Step 3: Cross multiply
   82,200.04x = 113,436.10 × 57,064.12
4. Step 4: Simplify right side
   82,200.04x = 6,473,131,222.73
5. Step 5: Solve for x
   x = 6,473,131,222.73/82,200.04
6. Step 6: Final answer
   x = 78,748.52