Finding the Fourth Proportional to 6,483.12, 8,947.12 and 3,688.62

Step by Step Solution

1. Step 1: Write the proportion equation
   6,483.12 : 8,947.12 = 3,688.62 : x
2. Step 2: Convert to fraction form
   6,483.12/8,947.12 = 3,688.62/x
3. Step 3: Cross multiply
   6,483.12x = 8,947.12 × 3,688.62
4. Step 4: Simplify right side
   6,483.12x = 33,002,525.77
5. Step 5: Solve for x
   x = 33,002,525.77/6,483.12
6. Step 6: Final answer
   x = 5,090.53