Finding the Fourth Proportional to 22,749.18, 31,393.59 and 12,677.64

Step by Step Solution

1. Step 1: Write the proportion equation
   22,749.18 : 31,393.59 = 12,677.64 : x
2. Step 2: Convert to fraction form
   22,749.18/31,393.59 = 12,677.64/x
3. Step 3: Cross multiply
   22,749.18x = 31,393.59 × 12,677.64
4. Step 4: Simplify right side
   22,749.18x = 397,996,632.33
5. Step 5: Solve for x
   x = 397,996,632.33/22,749.18
6. Step 6: Final answer
   x = 17,494.99