Finding the Fourth Proportional to 14,082.69, 19,432.79 and 8,416.31

Step by Step Solution

1. Step 1: Write the proportion equation
   14,082.69 : 19,432.79 = 8,416.31 : x
2. Step 2: Convert to fraction form
   14,082.69/19,432.79 = 8,416.31/x
3. Step 3: Cross multiply
   14,082.69x = 19,432.79 × 8,416.31
4. Step 4: Simplify right side
   14,082.69x = 163,552,384.80
5. Step 5: Solve for x
   x = 163,552,384.80/14,082.69
6. Step 6: Final answer
   x = 11,613.72