Finding the Fourth Proportional to 9,248.96, 12,763.50 and 5,057.22

Step by Step Solution

1. Step 1: Write the proportion equation
   9,248.96 : 12,763.50 = 5,057.22 : x
2. Step 2: Convert to fraction form
   9,248.96/12,763.50 = 5,057.22/x
3. Step 3: Cross multiply
   9,248.96x = 12,763.50 × 5,057.22
4. Step 4: Simplify right side
   9,248.96x = 64,547,827.47
5. Step 5: Solve for x
   x = 64,547,827.47/9,248.96
6. Step 6: Final answer
   x = 6,978.93