Finding the Fourth Proportional to 16,188.72, 22,307.58 and 12,411.96

Step by Step Solution

1. Step 1: Write the proportion equation
   16,188.72 : 22,307.58 = 12,411.96 : x
2. Step 2: Convert to fraction form
   16,188.72/22,307.58 = 12,411.96/x
3. Step 3: Cross multiply
   16,188.72x = 22,307.58 × 12,411.96
4. Step 4: Simplify right side
   16,188.72x = 276,880,790.66
5. Step 5: Solve for x
   x = 276,880,790.66/16,188.72
6. Step 6: Final answer
   x = 17,103.32