Finding the Fourth Proportional to 22,648.42, 31,255.62 and 12,577.03

Step by Step Solution

1. Step 1: Write the proportion equation
   22,648.42 : 31,255.62 = 12,577.03 : x
2. Step 2: Convert to fraction form
   22,648.42/31,255.62 = 12,577.03/x
3. Step 3: Cross multiply
   22,648.42x = 31,255.62 × 12,577.03
4. Step 4: Simplify right side
   22,648.42x = 393,102,870.41
5. Step 5: Solve for x
   x = 393,102,870.41/22,648.42
6. Step 6: Final answer
   x = 17,356.75