Finding the Fourth Proportional to 8,139.10, 12,202.98 and 3,750.52

Step by Step Solution

1. Step 1: Write the proportion equation
   8,139.10 : 12,202.98 = 3,750.52 : x
2. Step 2: Convert to fraction form
   8,139.10/12,202.98 = 3,750.52/x
3. Step 3: Cross multiply
   8,139.10x = 12,202.98 × 3,750.52
4. Step 4: Simplify right side
   8,139.10x = 45,767,520.55
5. Step 5: Solve for x
   x = 45,767,520.55/8,139.10
6. Step 6: Final answer
   x = 5,623.17