Finding the Fourth Proportional to 7,454.80, 10,287.78 and 4,097.92

Step by Step Solution

1. Step 1: Write the proportion equation
   7,454.80 : 10,287.78 = 4,097.92 : x
2. Step 2: Convert to fraction form
   7,454.80/10,287.78 = 4,097.92/x
3. Step 3: Cross multiply
   7,454.80x = 10,287.78 × 4,097.92
4. Step 4: Simplify right side
   7,454.80x = 42,158,499.42
5. Step 5: Solve for x
   x = 42,158,499.42/7,454.80
6. Step 6: Final answer
   x = 5,655.22