Finding the Fourth Proportional to 10,143.48, 13,999.20 and 5,667.84

Step by Step Solution

1. Step 1: Write the proportion equation
   10,143.48 : 13,999.20 = 5,667.84 : x
2. Step 2: Convert to fraction form
   10,143.48/13,999.20 = 5,667.84/x
3. Step 3: Cross multiply
   10,143.48x = 13,999.20 × 5,667.84
4. Step 4: Simplify right side
   10,143.48x = 79,345,225.73
5. Step 5: Solve for x
   x = 79,345,225.73/10,143.48
6. Step 6: Final answer
   x = 7,822.29