Finding the Fourth Proportional to 12,496.80, 17,248.50 and 8,248.62

Step by Step Solution

1. Step 1: Write the proportion equation
   12,496.80 : 17,248.50 = 8,248.62 : x
2. Step 2: Convert to fraction form
   12,496.80/17,248.50 = 8,248.62/x
3. Step 3: Cross multiply
   12,496.80x = 17,248.50 × 8,248.62
4. Step 4: Simplify right side
   12,496.80x = 142,276,322.07
5. Step 5: Solve for x
   x = 142,276,322.07/12,496.80
6. Step 6: Final answer
   x = 11,385.02