Finding the Fourth Proportional to 12,055.79, 16,638.96 and 8,275.82

Step by Step Solution

1. Step 1: Write the proportion equation
   12,055.79 : 16,638.96 = 8,275.82 : x
2. Step 2: Convert to fraction form
   12,055.79/16,638.96 = 8,275.82/x
3. Step 3: Cross multiply
   12,055.79x = 16,638.96 × 8,275.82
4. Step 4: Simplify right side
   12,055.79x = 137,701,037.95
5. Step 5: Solve for x
   x = 137,701,037.95/12,055.79
6. Step 6: Final answer
   x = 11,421.98