Finding the Fourth Proportional to 10,868.56, 16,302.88 and 3,943.12

Step by Step Solution

1. Step 1: Write the proportion equation
   10,868.56 : 16,302.88 = 3,943.12 : x
2. Step 2: Convert to fraction form
   10,868.56/16,302.88 = 3,943.12/x
3. Step 3: Cross multiply
   10,868.56x = 16,302.88 × 3,943.12
4. Step 4: Simplify right side
   10,868.56x = 64,284,212.19
5. Step 5: Solve for x
   x = 64,284,212.19/10,868.56
6. Step 6: Final answer
   x = 5,914.69