Finding the Fourth Proportional to 14,434.46, 19,916.72 and 8,145.62

Step by Step Solution

1. Step 1: Write the proportion equation
   14,434.46 : 19,916.72 = 8,145.62 : x
2. Step 2: Convert to fraction form
   14,434.46/19,916.72 = 8,145.62/x
3. Step 3: Cross multiply
   14,434.46x = 19,916.72 × 8,145.62
4. Step 4: Simplify right side
   14,434.46x = 162,233,892.45
5. Step 5: Solve for x
   x = 162,233,892.45/14,434.46
6. Step 6: Final answer
   x = 11,239.35