Finding the Fourth Proportional to 10,143.58, 13,998.70 and 5,667.44

Step by Step Solution

1. Step 1: Write the proportion equation
   10,143.58 : 13,998.70 = 5,667.44 : x
2. Step 2: Convert to fraction form
   10,143.58/13,998.70 = 5,667.44/x
3. Step 3: Cross multiply
   10,143.58x = 13,998.70 × 5,667.44
4. Step 4: Simplify right side
   10,143.58x = 79,336,792.33
5. Step 5: Solve for x
   x = 79,336,792.33/10,143.58
6. Step 6: Final answer
   x = 7,821.38