Finding the Fourth Proportional to 10,185.14, 14,055.36 and 5,708.88

Step by Step Solution

1. Step 1: Write the proportion equation
   10,185.14 : 14,055.36 = 5,708.88 : x
2. Step 2: Convert to fraction form
   10,185.14/14,055.36 = 5,708.88/x
3. Step 3: Cross multiply
   10,185.14x = 14,055.36 × 5,708.88
4. Step 4: Simplify right side
   10,185.14x = 80,240,363.60
5. Step 5: Solve for x
   x = 80,240,363.60/10,185.14
6. Step 6: Final answer
   x = 7,878.18