Finding the Fourth Proportional to 10,782.56, 16,143.84 and 5,506.18

Step by Step Solution

1. Step 1: Write the proportion equation
   10,782.56 : 16,143.84 = 5,506.18 : x
2. Step 2: Convert to fraction form
   10,782.56/16,143.84 = 5,506.18/x
3. Step 3: Cross multiply
   10,782.56x = 16,143.84 × 5,506.18
4. Step 4: Simplify right side
   10,782.56x = 88,890,888.93
5. Step 5: Solve for x
   x = 88,890,888.93/10,782.56
6. Step 6: Final answer
   x = 8,243.95