Finding the Fourth Proportional to 9,057.60, 12,502.12 and 5,870.80

Step by Step Solution

1. Step 1: Write the proportion equation
   9,057.60 : 12,502.12 = 5,870.80 : x
2. Step 2: Convert to fraction form
   9,057.60/12,502.12 = 5,870.80/x
3. Step 3: Cross multiply
   9,057.60x = 12,502.12 × 5,870.80
4. Step 4: Simplify right side
   9,057.60x = 73,397,446.10
5. Step 5: Solve for x
   x = 73,397,446.10/9,057.60
6. Step 6: Final answer
   x = 8,103.41