Finding the Fourth Proportional to 11,822.86, 17,734.74 and 4,426.55

Step by Step Solution

1. Step 1: Write the proportion equation
   11,822.86 : 17,734.74 = 4,426.55 : x
2. Step 2: Convert to fraction form
   11,822.86/17,734.74 = 4,426.55/x
3. Step 3: Cross multiply
   11,822.86x = 17,734.74 × 4,426.55
4. Step 4: Simplify right side
   11,822.86x = 78,503,713.35
5. Step 5: Solve for x
   x = 78,503,713.35/11,822.86
6. Step 6: Final answer
   x = 6,640.00