Finding the Fourth Proportional to 10,091.12, 15,114.12 and 7,160.48

Step by Step Solution

1. Step 1: Write the proportion equation
   10,091.12 : 15,114.12 = 7,160.48 : x
2. Step 2: Convert to fraction form
   10,091.12/15,114.12 = 7,160.48/x
3. Step 3: Cross multiply
   10,091.12x = 15,114.12 × 7,160.48
4. Step 4: Simplify right side
   10,091.12x = 108,224,353.98
5. Step 5: Solve for x
   x = 108,224,353.98/10,091.12
6. Step 6: Final answer
   x = 10,724.71