Finding the Fourth Proportional to 7,862.72, 10,851.31 and 5,869.81

Step by Step Solution

1. Step 1: Write the proportion equation
   7,862.72 : 10,851.31 = 5,869.81 : x
2. Step 2: Convert to fraction form
   7,862.72/10,851.31 = 5,869.81/x
3. Step 3: Cross multiply
   7,862.72x = 10,851.31 × 5,869.81
4. Step 4: Simplify right side
   7,862.72x = 63,695,115.83
5. Step 5: Solve for x
   x = 63,695,115.83/7,862.72
6. Step 6: Final answer
   x = 8,100.91