Finding the Fourth Proportional to 12,329.75, 18,499.28 and 7,402.83

Step by Step Solution

1. Step 1: Write the proportion equation
   12,329.75 : 18,499.28 = 7,402.83 : x
2. Step 2: Convert to fraction form
   12,329.75/18,499.28 = 7,402.83/x
3. Step 3: Cross multiply
   12,329.75x = 18,499.28 × 7,402.83
4. Step 4: Simplify right side
   12,329.75x = 136,947,024.96
5. Step 5: Solve for x
   x = 136,947,024.96/12,329.75
6. Step 6: Final answer
   x = 11,107.04