Finding the Fourth Proportional to 11,700.96, 17,550.72 and 3,907.68

Step by Step Solution

1. Step 1: Write the proportion equation
   11,700.96 : 17,550.72 = 3,907.68 : x
2. Step 2: Convert to fraction form
   11,700.96/17,550.72 = 3,907.68/x
3. Step 3: Cross multiply
   11,700.96x = 17,550.72 × 3,907.68
4. Step 4: Simplify right side
   11,700.96x = 68,582,597.53
5. Step 5: Solve for x
   x = 68,582,597.53/11,700.96
6. Step 6: Final answer
   x = 5,861.28