Finding the Fourth Proportional to 5,323.32, 7,977.96 and 4,086.72

Step by Step Solution

1. Step 1: Write the proportion equation
   5,323.32 : 7,977.96 = 4,086.72 : x
2. Step 2: Convert to fraction form
   5,323.32/7,977.96 = 4,086.72/x
3. Step 3: Cross multiply
   5,323.32x = 7,977.96 × 4,086.72
4. Step 4: Simplify right side
   5,323.32x = 32,603,688.69
5. Step 5: Solve for x
   x = 32,603,688.69/5,323.32
6. Step 6: Final answer
   x = 6,124.69