Finding the Fourth Proportional to 11,124.48, 15,364.38 and 7,581.54

Step by Step Solution

1. Step 1: Write the proportion equation
   11,124.48 : 15,364.38 = 7,581.54 : x
2. Step 2: Convert to fraction form
   11,124.48/15,364.38 = 7,581.54/x
3. Step 3: Cross multiply
   11,124.48x = 15,364.38 × 7,581.54
4. Step 4: Simplify right side
   11,124.48x = 116,485,661.55
5. Step 5: Solve for x
   x = 116,485,661.55/11,124.48
6. Step 6: Final answer
   x = 10,471.11