Finding the Fourth Proportional to 10,386.57, 14,333.39 and 5,670.85

Step by Step Solution

1. Step 1: Write the proportion equation
   10,386.57 : 14,333.39 = 5,670.85 : x
2. Step 2: Convert to fraction form
   10,386.57/14,333.39 = 5,670.85/x
3. Step 3: Cross multiply
   10,386.57x = 14,333.39 × 5,670.85
4. Step 4: Simplify right side
   10,386.57x = 81,282,504.68
5. Step 5: Solve for x
   x = 81,282,504.68/10,386.57
6. Step 6: Final answer
   x = 7,825.73