Finding the Fourth Proportional to 10,185.81, 14,056.14 and 5,709.85

Step by Step Solution

1. Step 1: Write the proportion equation
   10,185.81 : 14,056.14 = 5,709.85 : x
2. Step 2: Convert to fraction form
   10,185.81/14,056.14 = 5,709.85/x
3. Step 3: Cross multiply
   10,185.81x = 14,056.14 × 5,709.85
4. Step 4: Simplify right side
   10,185.81x = 80,258,437.25
5. Step 5: Solve for x
   x = 80,258,437.25/10,185.81
6. Step 6: Final answer
   x = 7,879.44