Finding the Fourth Proportional to 9,248.84, 12,763.42 and 5,057.10

Step by Step Solution

1. Step 1: Write the proportion equation
   9,248.84 : 12,763.42 = 5,057.10 : x
2. Step 2: Convert to fraction form
   9,248.84/12,763.42 = 5,057.10/x
3. Step 3: Cross multiply
   9,248.84x = 12,763.42 × 5,057.10
4. Step 4: Simplify right side
   9,248.84x = 64,545,891.28
5. Step 5: Solve for x
   x = 64,545,891.28/9,248.84
6. Step 6: Final answer
   x = 6,978.81