Finding the Fourth Proportional to 11,515.43, 15,900.54 and 7,484.27

Step by Step Solution

1. Step 1: Write the proportion equation
   11,515.43 : 15,900.54 = 7,484.27 : x
2. Step 2: Convert to fraction form
   11,515.43/15,900.54 = 7,484.27/x
3. Step 3: Cross multiply
   11,515.43x = 15,900.54 × 7,484.27
4. Step 4: Simplify right side
   11,515.43x = 119,003,826.94
5. Step 5: Solve for x
   x = 119,003,826.94/11,515.43
6. Step 6: Final answer
   x = 10,334.29