Finding the Fourth Proportional to 10,969.54, 15,131 and 7,192.95

Step by Step Solution

1. Step 1: Write the proportion equation
   10,969.54 : 15,131 = 7,192.95 : x
2. Step 2: Convert to fraction form
   10,969.54/15,131 = 7,192.95/x
3. Step 3: Cross multiply
   10,969.54x = 15,131 × 7,192.95
4. Step 4: Simplify right side
   10,969.54x = 108,836,526.45
5. Step 5: Solve for x
   x = 108,836,526.45/10,969.54
6. Step 6: Final answer
   x = 9,921.70