Finding the Fourth Proportional to 7,081.72, 9,773.98 and 4,097.64

Step by Step Solution

1. Step 1: Write the proportion equation
   7,081.72 : 9,773.98 = 4,097.64 : x
2. Step 2: Convert to fraction form
   7,081.72/9,773.98 = 4,097.64/x
3. Step 3: Cross multiply
   7,081.72x = 9,773.98 × 4,097.64
4. Step 4: Simplify right side
   7,081.72x = 40,050,251.41
5. Step 5: Solve for x
   x = 40,050,251.41/7,081.72
6. Step 6: Final answer
   x = 5,655.44