Finding the Fourth Proportional to 22,230.72, 30,677.94 and 12,799.35

Step by Step Solution

1. Step 1: Write the proportion equation
   22,230.72 : 30,677.94 = 12,799.35 : x
2. Step 2: Convert to fraction form
   22,230.72/30,677.94 = 12,799.35/x
3. Step 3: Cross multiply
   22,230.72x = 30,677.94 × 12,799.35
4. Step 4: Simplify right side
   22,230.72x = 392,657,691.34
5. Step 5: Solve for x
   x = 392,657,691.34/22,230.72
6. Step 6: Final answer
   x = 17,662.84