Finding the Fourth Proportional to 10,154.79, 14,013.27 and 5,679.05

Step by Step Solution

1. Step 1: Write the proportion equation
   10,154.79 : 14,013.27 = 5,679.05 : x
2. Step 2: Convert to fraction form
   10,154.79/14,013.27 = 5,679.05/x
3. Step 3: Cross multiply
   10,154.79x = 14,013.27 × 5,679.05
4. Step 4: Simplify right side
   10,154.79x = 79,581,990.93
5. Step 5: Solve for x
   x = 79,581,990.93/10,154.79
6. Step 6: Final answer
   x = 7,836.89