Finding the Fourth Proportional to 10,082.88, 15,111.12 and 5,148.32

Step by Step Solution

1. Step 1: Write the proportion equation
   10,082.88 : 15,111.12 = 5,148.32 : x
2. Step 2: Convert to fraction form
   10,082.88/15,111.12 = 5,148.32/x
3. Step 3: Cross multiply
   10,082.88x = 15,111.12 × 5,148.32
4. Step 4: Simplify right side
   10,082.88x = 77,796,881.32
5. Step 5: Solve for x
   x = 77,796,881.32/10,082.88
6. Step 6: Final answer
   x = 7,715.74