Finding the Fourth Proportional to 10,581.41, 15,870.50 and 2,790.83

Step by Step Solution

1. Step 1: Write the proportion equation
   10,581.41 : 15,870.50 = 2,790.83 : x
2. Step 2: Convert to fraction form
   10,581.41/15,870.50 = 2,790.83/x
3. Step 3: Cross multiply
   10,581.41x = 15,870.50 × 2,790.83
4. Step 4: Simplify right side
   10,581.41x = 44,291,893.24
5. Step 5: Solve for x
   x = 44,291,893.24/10,581.41
6. Step 6: Final answer
   x = 4,185.82