Finding the Fourth Proportional to 17,641.72, 26,449.98 and 8,276.50

Step by Step Solution

1. Step 1: Write the proportion equation
   17,641.72 : 26,449.98 = 8,276.50 : x
2. Step 2: Convert to fraction form
   17,641.72/26,449.98 = 8,276.50/x
3. Step 3: Cross multiply
   17,641.72x = 26,449.98 × 8,276.50
4. Step 4: Simplify right side
   17,641.72x = 218,913,259.47
5. Step 5: Solve for x
   x = 218,913,259.47/17,641.72
6. Step 6: Final answer
   x = 12,408.84