Finding the Fourth Proportional to 12,328.92, 18,498.04 and 7,401.98

Step by Step Solution

1. Step 1: Write the proportion equation
   12,328.92 : 18,498.04 = 7,401.98 : x
2. Step 2: Convert to fraction form
   12,328.92/18,498.04 = 7,401.98/x
3. Step 3: Cross multiply
   12,328.92x = 18,498.04 × 7,401.98
4. Step 4: Simplify right side
   12,328.92x = 136,922,149.86
5. Step 5: Solve for x
   x = 136,922,149.86/12,328.92
6. Step 6: Final answer
   x = 11,105.77