Finding the Fourth Proportional to 7,091.16, 9,784.32 and 4,105.92

Step by Step Solution

1. Step 1: Write the proportion equation
   7,091.16 : 9,784.32 = 4,105.92 : x
2. Step 2: Convert to fraction form
   7,091.16/9,784.32 = 4,105.92/x
3. Step 3: Cross multiply
   7,091.16x = 9,784.32 × 4,105.92
4. Step 4: Simplify right side
   7,091.16x = 40,173,635.17
5. Step 5: Solve for x
   x = 40,173,635.17/7,091.16
6. Step 6: Final answer
   x = 5,665.31