Finding the Fourth Proportional to 16,360.72, 22,577.52 and 9,646.60

Step by Step Solution

1. Step 1: Write the proportion equation
   16,360.72 : 22,577.52 = 9,646.60 : x
2. Step 2: Convert to fraction form
   16,360.72/22,577.52 = 9,646.60/x
3. Step 3: Cross multiply
   16,360.72x = 22,577.52 × 9,646.60
4. Step 4: Simplify right side
   16,360.72x = 217,796,304.43
5. Step 5: Solve for x
   x = 217,796,304.43/16,360.72
6. Step 6: Final answer
   x = 13,312.15