Finding the Fourth Proportional to 6,340.05, 8,748.99 and 3,687.30

Step by Step Solution

1. Step 1: Write the proportion equation
   6,340.05 : 8,748.99 = 3,687.30 : x
2. Step 2: Convert to fraction form
   6,340.05/8,748.99 = 3,687.30/x
3. Step 3: Cross multiply
   6,340.05x = 8,748.99 × 3,687.30
4. Step 4: Simplify right side
   6,340.05x = 32,260,150.83
5. Step 5: Solve for x
   x = 32,260,150.83/6,340.05
6. Step 6: Final answer
   x = 5,088.31