Finding the Fourth Proportional to 7,870.86, 10,863.18 and 4,727.25

Step by Step Solution

1. Step 1: Write the proportion equation
   7,870.86 : 10,863.18 = 4,727.25 : x
2. Step 2: Convert to fraction form
   7,870.86/10,863.18 = 4,727.25/x
3. Step 3: Cross multiply
   7,870.86x = 10,863.18 × 4,727.25
4. Step 4: Simplify right side
   7,870.86x = 51,352,967.66
5. Step 5: Solve for x
   x = 51,352,967.66/7,870.86
6. Step 6: Final answer
   x = 6,524.44