Finding the Fourth Proportional to 22,784.75, 31,444.17 and 13,356.35

Step by Step Solution

1. Step 1: Write the proportion equation
   22,784.75 : 31,444.17 = 13,356.35 : x
2. Step 2: Convert to fraction form
   22,784.75/31,444.17 = 13,356.35/x
3. Step 3: Cross multiply
   22,784.75x = 31,444.17 × 13,356.35
4. Step 4: Simplify right side
   22,784.75x = 419,979,339.98
5. Step 5: Solve for x
   x = 419,979,339.98/22,784.75
6. Step 6: Final answer
   x = 18,432.48