Finding the Fourth Proportional to 12,428.83, 17,152.32 and 7,124.14

Step by Step Solution

1. Step 1: Write the proportion equation
   12,428.83 : 17,152.32 = 7,124.14 : x
2. Step 2: Convert to fraction form
   12,428.83/17,152.32 = 7,124.14/x
3. Step 3: Cross multiply
   12,428.83x = 17,152.32 × 7,124.14
4. Step 4: Simplify right side
   12,428.83x = 122,195,529.00
5. Step 5: Solve for x
   x = 122,195,529.00/12,428.83
6. Step 6: Final answer
   x = 9,831.62