Finding the Fourth Proportional to 11,217.60, 15,488.52 and 7,241.04

Step by Step Solution

1. Step 1: Write the proportion equation
   11,217.60 : 15,488.52 = 7,241.04 : x
2. Step 2: Convert to fraction form
   11,217.60/15,488.52 = 7,241.04/x
3. Step 3: Cross multiply
   11,217.60x = 15,488.52 × 7,241.04
4. Step 4: Simplify right side
   11,217.60x = 112,152,992.86
5. Step 5: Solve for x
   x = 112,152,992.86/11,217.60
6. Step 6: Final answer
   x = 9,997.95