Finding the Fourth Proportional to 7,866.32, 10,856.70 and 5,035.10

Step by Step Solution

1. Step 1: Write the proportion equation
   7,866.32 : 10,856.70 = 5,035.10 : x
2. Step 2: Convert to fraction form
   7,866.32/10,856.70 = 5,035.10/x
3. Step 3: Cross multiply
   7,866.32x = 10,856.70 × 5,035.10
4. Step 4: Simplify right side
   7,866.32x = 54,664,515.89
5. Step 5: Solve for x
   x = 54,664,515.89/7,866.32
6. Step 6: Final answer
   x = 6,949.19