Finding the Fourth Proportional to 11,458.82, 15,815.85 and 7,472.99

Step by Step Solution

1. Step 1: Write the proportion equation
   11,458.82 : 15,815.85 = 7,472.99 : x
2. Step 2: Convert to fraction form
   11,458.82/15,815.85 = 7,472.99/x
3. Step 3: Cross multiply
   11,458.82x = 15,815.85 × 7,472.99
4. Step 4: Simplify right side
   11,458.82x = 118,191,688.89
5. Step 5: Solve for x
   x = 118,191,688.89/11,458.82
6. Step 6: Final answer
   x = 10,314.47