Finding the Fourth Proportional to 7,091.96, 10,632.72 and 3,396.78

Step by Step Solution

1. Step 1: Write the proportion equation
   7,091.96 : 10,632.72 = 3,396.78 : x
2. Step 2: Convert to fraction form
   7,091.96/10,632.72 = 3,396.78/x
3. Step 3: Cross multiply
   7,091.96x = 10,632.72 × 3,396.78
4. Step 4: Simplify right side
   7,091.96x = 36,117,023.38
5. Step 5: Solve for x
   x = 36,117,023.38/7,091.96
6. Step 6: Final answer
   x = 5,092.68