Finding the Fourth Proportional to 11,098.73, 16,639.89 and 5,248.50

Step by Step Solution

1. Step 1: Write the proportion equation
   11,098.73 : 16,639.89 = 5,248.50 : x
2. Step 2: Convert to fraction form
   11,098.73/16,639.89 = 5,248.50/x
3. Step 3: Cross multiply
   11,098.73x = 16,639.89 × 5,248.50
4. Step 4: Simplify right side
   11,098.73x = 87,334,462.67
5. Step 5: Solve for x
   x = 87,334,462.67/11,098.73
6. Step 6: Final answer
   x = 7,868.87