Finding the Fourth Proportional to 22,656.78, 31,265.48 and 12,585.86

Step by Step Solution

1. Step 1: Write the proportion equation
   22,656.78 : 31,265.48 = 12,585.86 : x
2. Step 2: Convert to fraction form
   22,656.78/31,265.48 = 12,585.86/x
3. Step 3: Cross multiply
   22,656.78x = 31,265.48 × 12,585.86
4. Step 4: Simplify right side
   22,656.78x = 393,503,063.74
5. Step 5: Solve for x
   x = 393,503,063.74/22,656.78
6. Step 6: Final answer
   x = 17,368.00