Finding the Fourth Proportional to 8,502.50, 11,735.76 and 5,518.16

Step by Step Solution

1. Step 1: Write the proportion equation
   8,502.50 : 11,735.76 = 5,518.16 : x
2. Step 2: Convert to fraction form
   8,502.50/11,735.76 = 5,518.16/x
3. Step 3: Cross multiply
   8,502.50x = 11,735.76 × 5,518.16
4. Step 4: Simplify right side
   8,502.50x = 64,759,742.72
5. Step 5: Solve for x
   x = 64,759,742.72/8,502.50
6. Step 6: Final answer
   x = 7,616.56