Finding the Fourth Proportional to 10,155.43, 14,014.67 and 5,678.69

Step by Step Solution

1. Step 1: Write the proportion equation
   10,155.43 : 14,014.67 = 5,678.69 : x
2. Step 2: Convert to fraction form
   10,155.43/14,014.67 = 5,678.69/x
3. Step 3: Cross multiply
   10,155.43x = 14,014.67 × 5,678.69
4. Step 4: Simplify right side
   10,155.43x = 79,584,973.03
5. Step 5: Solve for x
   x = 79,584,973.03/10,155.43
6. Step 6: Final answer
   x = 7,836.69