Finding the Fourth Proportional to 22,333.34, 30,818.97 and 13,385.78

Step by Step Solution

1. Step 1: Write the proportion equation
   22,333.34 : 30,818.97 = 13,385.78 : x
2. Step 2: Convert to fraction form
   22,333.34/30,818.97 = 13,385.78/x
3. Step 3: Cross multiply
   22,333.34x = 30,818.97 × 13,385.78
4. Step 4: Simplify right side
   22,333.34x = 412,535,952.25
5. Step 5: Solve for x
   x = 412,535,952.25/22,333.34
6. Step 6: Final answer
   x = 18,471.75