Finding the Fourth Proportional to 11,086.99, 15,294.74 and 7,503.20

Step by Step Solution

1. Step 1: Write the proportion equation
   11,086.99 : 15,294.74 = 7,503.20 : x
2. Step 2: Convert to fraction form
   11,086.99/15,294.74 = 7,503.20/x
3. Step 3: Cross multiply
   11,086.99x = 15,294.74 × 7,503.20
4. Step 4: Simplify right side
   11,086.99x = 114,759,478.74
5. Step 5: Solve for x
   x = 114,759,478.74/11,086.99
6. Step 6: Final answer
   x = 10,350.83