Finding the Fourth Proportional to 10,144.17, 13,998.93 and 5,667.91

Step by Step Solution

1. Step 1: Write the proportion equation
   10,144.17 : 13,998.93 = 5,667.91 : x
2. Step 2: Convert to fraction form
   10,144.17/13,998.93 = 5,667.91/x
3. Step 3: Cross multiply
   10,144.17x = 13,998.93 × 5,667.91
4. Step 4: Simplify right side
   10,144.17x = 79,344,619.08
5. Step 5: Solve for x
   x = 79,344,619.08/10,144.17
6. Step 6: Final answer
   x = 7,821.70