Finding the Fourth Proportional to 6,681.70, 10,016.15 and 5,200.10

Step by Step Solution

1. Step 1: Write the proportion equation
   6,681.70 : 10,016.15 = 5,200.10 : x
2. Step 2: Convert to fraction form
   6,681.70/10,016.15 = 5,200.10/x
3. Step 3: Cross multiply
   6,681.70x = 10,016.15 × 5,200.10
4. Step 4: Simplify right side
   6,681.70x = 52,084,981.62
5. Step 5: Solve for x
   x = 52,084,981.62/6,681.70
6. Step 6: Final answer
   x = 7,795.17