Finding the Fourth Proportional to 8,981.78, 13,472.34 and 2,407.61

Step by Step Solution

1. Step 1: Write the proportion equation
   8,981.78 : 13,472.34 = 2,407.61 : x
2. Step 2: Convert to fraction form
   8,981.78/13,472.34 = 2,407.61/x
3. Step 3: Cross multiply
   8,981.78x = 13,472.34 × 2,407.61
4. Step 4: Simplify right side
   8,981.78x = 32,436,073.15
5. Step 5: Solve for x
   x = 32,436,073.15/8,981.78
6. Step 6: Final answer
   x = 3,611.32