Finding the Fourth Proportional to 6,520.50, 8,998.47 and 3,688.31

Step by Step Solution

1. Step 1: Write the proportion equation
   6,520.50 : 8,998.47 = 3,688.31 : x
2. Step 2: Convert to fraction form
   6,520.50/8,998.47 = 3,688.31/x
3. Step 3: Cross multiply
   6,520.50x = 8,998.47 × 3,688.31
4. Step 4: Simplify right side
   6,520.50x = 33,189,101.89
5. Step 5: Solve for x
   x = 33,189,101.89/6,520.50
6. Step 6: Final answer
   x = 5,089.96