Finding the Fourth Proportional to 10,095.78, 15,123.15 and 7,471.11

Step by Step Solution

1. Step 1: Write the proportion equation
   10,095.78 : 15,123.15 = 7,471.11 : x
2. Step 2: Convert to fraction form
   10,095.78/15,123.15 = 7,471.11/x
3. Step 3: Cross multiply
   10,095.78x = 15,123.15 × 7,471.11
4. Step 4: Simplify right side
   10,095.78x = 112,986,717.20
5. Step 5: Solve for x
   x = 112,986,717.20/10,095.78
6. Step 6: Final answer
   x = 11,191.48