Finding the Fourth Proportional to 5,300.87, 7,939.01 and 5,116.35

Step by Step Solution

1. Step 1: Write the proportion equation
   5,300.87 : 7,939.01 = 5,116.35 : x
2. Step 2: Convert to fraction form
   5,300.87/7,939.01 = 5,116.35/x
3. Step 3: Cross multiply
   5,300.87x = 7,939.01 × 5,116.35
4. Step 4: Simplify right side
   5,300.87x = 40,618,728.23
5. Step 5: Solve for x
   x = 40,618,728.23/5,300.87
6. Step 6: Final answer
   x = 7,662.65