Finding the Fourth Proportional to 16,264.72, 22,445.31 and 8,812.72

Step by Step Solution

1. Step 1: Write the proportion equation
   16,264.72 : 22,445.31 = 8,812.72 : x
2. Step 2: Convert to fraction form
   16,264.72/22,445.31 = 8,812.72/x
3. Step 3: Cross multiply
   16,264.72x = 22,445.31 × 8,812.72
4. Step 4: Simplify right side
   16,264.72x = 197,804,232.34
5. Step 5: Solve for x
   x = 197,804,232.34/16,264.72
6. Step 6: Final answer
   x = 12,161.55