Finding the Fourth Proportional to 13,492.18, 18,614.28 and 8,456.61

Step by Step Solution

1. Step 1: Write the proportion equation
   13,492.18 : 18,614.28 = 8,456.61 : x
2. Step 2: Convert to fraction form
   13,492.18/18,614.28 = 8,456.61/x
3. Step 3: Cross multiply
   13,492.18x = 18,614.28 × 8,456.61
4. Step 4: Simplify right side
   13,492.18x = 157,413,807.91
5. Step 5: Solve for x
   x = 157,413,807.91/13,492.18
6. Step 6: Final answer
   x = 11,667.04