Finding the Fourth Proportional to 5,677.72, 7,832.32 and 3,318.50

Step by Step Solution

1. Step 1: Write the proportion equation
   5,677.72 : 7,832.32 = 3,318.50 : x
2. Step 2: Convert to fraction form
   5,677.72/7,832.32 = 3,318.50/x
3. Step 3: Cross multiply
   5,677.72x = 7,832.32 × 3,318.50
4. Step 4: Simplify right side
   5,677.72x = 25,991,506.46
5. Step 5: Solve for x
   x = 25,991,506.46/5,677.72
6. Step 6: Final answer
   x = 4,577.81