Finding the Fourth Proportional to 22,566.05, 31,142.30 and 12,495.60

Step by Step Solution

1. Step 1: Write the proportion equation
   22,566.05 : 31,142.30 = 12,495.60 : x
2. Step 2: Convert to fraction form
   22,566.05/31,142.30 = 12,495.60/x
3. Step 3: Cross multiply
   22,566.05x = 31,142.30 × 12,495.60
4. Step 4: Simplify right side
   22,566.05x = 389,141,723.88
5. Step 5: Solve for x
   x = 389,141,723.88/22,566.05
6. Step 6: Final answer
   x = 17,244.57