Finding the Fourth Proportional to 14,411.98, 19,888.50 and 8,124.31

Step by Step Solution

1. Step 1: Write the proportion equation
   14,411.98 : 19,888.50 = 8,124.31 : x
2. Step 2: Convert to fraction form
   14,411.98/19,888.50 = 8,124.31/x
3. Step 3: Cross multiply
   14,411.98x = 19,888.50 × 8,124.31
4. Step 4: Simplify right side
   14,411.98x = 161,580,339.44
5. Step 5: Solve for x
   x = 161,580,339.44/14,411.98
6. Step 6: Final answer
   x = 11,211.53