Finding the Fourth Proportional to 6,506.50, 8,978.93 and 3,522.31

Step by Step Solution

1. Step 1: Write the proportion equation
   6,506.50 : 8,978.93 = 3,522.31 : x
2. Step 2: Convert to fraction form
   6,506.50/8,978.93 = 3,522.31/x
3. Step 3: Cross multiply
   6,506.50x = 8,978.93 × 3,522.31
4. Step 4: Simplify right side
   6,506.50x = 31,626,574.93
5. Step 5: Solve for x
   x = 31,626,574.93/6,506.50
6. Step 6: Final answer
   x = 4,860.77