Finding the Fourth Proportional to 10,906.77, 15,047.43 and 7,132.10

Step by Step Solution

1. Step 1: Write the proportion equation
   10,906.77 : 15,047.43 = 7,132.10 : x
2. Step 2: Convert to fraction form
   10,906.77/15,047.43 = 7,132.10/x
3. Step 3: Cross multiply
   10,906.77x = 15,047.43 × 7,132.10
4. Step 4: Simplify right side
   10,906.77x = 107,319,700.27
5. Step 5: Solve for x
   x = 107,319,700.27/10,906.77
6. Step 6: Final answer
   x = 9,839.73