Finding the Fourth Proportional to 22,735.88, 31,379.87 and 12,799.88

Step by Step Solution

1. Step 1: Write the proportion equation
   22,735.88 : 31,379.87 = 12,799.88 : x
2. Step 2: Convert to fraction form
   22,735.88/31,379.87 = 12,799.88/x
3. Step 3: Cross multiply
   22,735.88x = 31,379.87 × 12,799.88
4. Step 4: Simplify right side
   22,735.88x = 401,658,349.52
5. Step 5: Solve for x
   x = 401,658,349.52/22,735.88
6. Step 6: Final answer
   x = 17,666.28