Finding the Fourth Proportional to 10,570.78, 14,587.98 and 5,855.05

Step by Step Solution

1. Step 1: Write the proportion equation
   10,570.78 : 14,587.98 = 5,855.05 : x
2. Step 2: Convert to fraction form
   10,570.78/14,587.98 = 5,855.05/x
3. Step 3: Cross multiply
   10,570.78x = 14,587.98 × 5,855.05
4. Step 4: Simplify right side
   10,570.78x = 85,413,352.30
5. Step 5: Solve for x
   x = 85,413,352.30/10,570.78
6. Step 6: Final answer
   x = 8,080.14