Finding the Fourth Proportional to 22,403.27, 30,916.86 and 12,843.99

Step by Step Solution

1. Step 1: Write the proportion equation
   22,403.27 : 30,916.86 = 12,843.99 : x
2. Step 2: Convert to fraction form
   22,403.27/30,916.86 = 12,843.99/x
3. Step 3: Cross multiply
   22,403.27x = 30,916.86 × 12,843.99
4. Step 4: Simplify right side
   22,403.27x = 397,095,840.67
5. Step 5: Solve for x
   x = 397,095,840.67/22,403.27
6. Step 6: Final answer
   x = 17,724.91