Finding the Fourth Proportional to 5,790.48, 8,687.52 and 3,938.88

Step by Step Solution

1. Step 1: Write the proportion equation
   5,790.48 : 8,687.52 = 3,938.88 : x
2. Step 2: Convert to fraction form
   5,790.48/8,687.52 = 3,938.88/x
3. Step 3: Cross multiply
   5,790.48x = 8,687.52 × 3,938.88
4. Step 4: Simplify right side
   5,790.48x = 34,219,098.78
5. Step 5: Solve for x
   x = 34,219,098.78/5,790.48
6. Step 6: Final answer
   x = 5,909.54