Finding the Fourth Proportional to 6,858.32, 10,285.94 and 3,157.00

Step by Step Solution

1. Step 1: Write the proportion equation
   6,858.32 : 10,285.94 = 3,157.00 : x
2. Step 2: Convert to fraction form
   6,858.32/10,285.94 = 3,157.00/x
3. Step 3: Cross multiply
   6,858.32x = 10,285.94 × 3,157.00
4. Step 4: Simplify right side
   6,858.32x = 32,472,645.37
5. Step 5: Solve for x
   x = 32,472,645.37/6,858.32
6. Step 6: Final answer
   x = 4,734.78