Finding the Fourth Proportional to 10,620.27, 14,655.82 and 6,143.92

Step by Step Solution

1. Step 1: Write the proportion equation
   10,620.27 : 14,655.82 = 6,143.92 : x
2. Step 2: Convert to fraction form
   10,620.27/14,655.82 = 6,143.92/x
3. Step 3: Cross multiply
   10,620.27x = 14,655.82 × 6,143.92
4. Step 4: Simplify right side
   10,620.27x = 90,044,185.61
5. Step 5: Solve for x
   x = 90,044,185.61/10,620.27
6. Step 6: Final answer
   x = 8,478.52