Finding the Fourth Proportional to 10,185.12, 15,229.92 and 7,254.48

Step by Step Solution

1. Step 1: Write the proportion equation
   10,185.12 : 15,229.92 = 7,254.48 : x
2. Step 2: Convert to fraction form
   10,185.12/15,229.92 = 7,254.48/x
3. Step 3: Cross multiply
   10,185.12x = 15,229.92 × 7,254.48
4. Step 4: Simplify right side
   10,185.12x = 110,485,150.04
5. Step 5: Solve for x
   x = 110,485,150.04/10,185.12
6. Step 6: Final answer
   x = 10,847.70