Finding the Fourth Proportional to 10,720.83, 16,081.34 and 4,399.19

Step by Step Solution

1. Step 1: Write the proportion equation
   10,720.83 : 16,081.34 = 4,399.19 : x
2. Step 2: Convert to fraction form
   10,720.83/16,081.34 = 4,399.19/x
3. Step 3: Cross multiply
   10,720.83x = 16,081.34 × 4,399.19
4. Step 4: Simplify right side
   10,720.83x = 70,744,870.11
5. Step 5: Solve for x
   x = 70,744,870.11/10,720.83
6. Step 6: Final answer
   x = 6,598.82