Finding the Fourth Proportional to 10,723.26, 16,080.78 and 3,705.72

Step by Step Solution

1. Step 1: Write the proportion equation
   10,723.26 : 16,080.78 = 3,705.72 : x
2. Step 2: Convert to fraction form
   10,723.26/16,080.78 = 3,705.72/x
3. Step 3: Cross multiply
   10,723.26x = 16,080.78 × 3,705.72
4. Step 4: Simplify right side
   10,723.26x = 59,590,868.06
5. Step 5: Solve for x
   x = 59,590,868.06/10,723.26
6. Step 6: Final answer
   x = 5,557.16