Finding the Fourth Proportional to 22,685.54, 31,298.82 and 13,730.18

Step by Step Solution

1. Step 1: Write the proportion equation
   22,685.54 : 31,298.82 = 13,730.18 : x
2. Step 2: Convert to fraction form
   22,685.54/31,298.82 = 13,730.18/x
3. Step 3: Cross multiply
   22,685.54x = 31,298.82 × 13,730.18
4. Step 4: Simplify right side
   22,685.54x = 429,738,432.39
5. Step 5: Solve for x
   x = 429,738,432.39/22,685.54
6. Step 6: Final answer
   x = 18,943.28