Finding the Fourth Proportional to 7,870.50, 10,862.24 and 4,513.86

Step by Step Solution

1. Step 1: Write the proportion equation
   7,870.50 : 10,862.24 = 4,513.86 : x
2. Step 2: Convert to fraction form
   7,870.50/10,862.24 = 4,513.86/x
3. Step 3: Cross multiply
   7,870.50x = 10,862.24 × 4,513.86
4. Step 4: Simplify right side
   7,870.50x = 49,030,608.08
5. Step 5: Solve for x
   x = 49,030,608.08/7,870.50
6. Step 6: Final answer
   x = 6,229.67