Finding the Fourth Proportional to 5,078.88, 7,005.15 and 3,397.32

Step by Step Solution

1. Step 1: Write the proportion equation
   5,078.88 : 7,005.15 = 3,397.32 : x
2. Step 2: Convert to fraction form
   5,078.88/7,005.15 = 3,397.32/x
3. Step 3: Cross multiply
   5,078.88x = 7,005.15 × 3,397.32
4. Step 4: Simplify right side
   5,078.88x = 23,798,736.20
5. Step 5: Solve for x
   x = 23,798,736.20/5,078.88
6. Step 6: Final answer
   x = 4,685.82