Finding the Fourth Proportional to 10,981.38, 15,156.54 and 7,445.73

Step by Step Solution

1. Step 1: Write the proportion equation
   10,981.38 : 15,156.54 = 7,445.73 : x
2. Step 2: Convert to fraction form
   10,981.38/15,156.54 = 7,445.73/x
3. Step 3: Cross multiply
   10,981.38x = 15,156.54 × 7,445.73
4. Step 4: Simplify right side
   10,981.38x = 112,851,504.57
5. Step 5: Solve for x
   x = 112,851,504.57/10,981.38
6. Step 6: Final answer
   x = 10,276.62