Finding the Fourth Proportional to 5,688.72, 8,563.79 and 5,116.53

Step by Step Solution

1. Step 1: Write the proportion equation
   5,688.72 : 8,563.79 = 5,116.53 : x
2. Step 2: Convert to fraction form
   5,688.72/8,563.79 = 5,116.53/x
3. Step 3: Cross multiply
   5,688.72x = 8,563.79 × 5,116.53
4. Step 4: Simplify right side
   5,688.72x = 43,816,888.45
5. Step 5: Solve for x
   x = 43,816,888.45/5,688.72
6. Step 6: Final answer
   x = 7,702.42