Finding the Fourth Proportional to 8,719.62, 12,026.98 and 5,734.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,719.62 : 12,026.98 = 5,734.50 : x
2. Step 2: Convert to fraction form
   8,719.62/12,026.98 = 5,734.50/x
3. Step 3: Cross multiply
   8,719.62x = 12,026.98 × 5,734.50
4. Step 4: Simplify right side
   8,719.62x = 68,968,716.81
5. Step 5: Solve for x
   x = 68,968,716.81/8,719.62
6. Step 6: Final answer
   x = 7,909.60