Finding the Fourth Proportional to 6,340.59, 8,749.71 and 3,688.02

Step by Step Solution

1. Step 1: Write the proportion equation
   6,340.59 : 8,749.71 = 3,688.02 : x
2. Step 2: Convert to fraction form
   6,340.59/8,749.71 = 3,688.02/x
3. Step 3: Cross multiply
   6,340.59x = 8,749.71 × 3,688.02
4. Step 4: Simplify right side
   6,340.59x = 32,269,105.47
5. Step 5: Solve for x
   x = 32,269,105.47/6,340.59
6. Step 6: Final answer
   x = 5,089.29