Finding the Fourth Proportional to 22,308.27, 30,787.98 and 13,355.77

Step by Step Solution

1. Step 1: Write the proportion equation
   22,308.27 : 30,787.98 = 13,355.77 : x
2. Step 2: Convert to fraction form
   22,308.27/30,787.98 = 13,355.77/x
3. Step 3: Cross multiply
   22,308.27x = 30,787.98 × 13,355.77
4. Step 4: Simplify right side
   22,308.27x = 411,197,179.64
5. Step 5: Solve for x
   x = 411,197,179.64/22,308.27
6. Step 6: Final answer
   x = 18,432.50