Finding the Fourth Proportional to 5,636.32, 7,778.76 and 3,399.34

Step by Step Solution

1. Step 1: Write the proportion equation
   5,636.32 : 7,778.76 = 3,399.34 : x
2. Step 2: Convert to fraction form
   5,636.32/7,778.76 = 3,399.34/x
3. Step 3: Cross multiply
   5,636.32x = 7,778.76 × 3,399.34
4. Step 4: Simplify right side
   5,636.32x = 26,442,650.02
5. Step 5: Solve for x
   x = 26,442,650.02/5,636.32
6. Step 6: Final answer
   x = 4,691.47