Finding the Fourth Proportional to 10,128.62, 13,981.92 and 6,150.98

Step by Step Solution

1. Step 1: Write the proportion equation
   10,128.62 : 13,981.92 = 6,150.98 : x
2. Step 2: Convert to fraction form
   10,128.62/13,981.92 = 6,150.98/x
3. Step 3: Cross multiply
   10,128.62x = 13,981.92 × 6,150.98
4. Step 4: Simplify right side
   10,128.62x = 86,002,510.28
5. Step 5: Solve for x
   x = 86,002,510.28/10,128.62
6. Step 6: Final answer
   x = 8,491.04