Finding the Fourth Proportional to 10,143.23, 13,999.03 and 5,667.30

Step by Step Solution

1. Step 1: Write the proportion equation
   10,143.23 : 13,999.03 = 5,667.30 : x
2. Step 2: Convert to fraction form
   10,143.23/13,999.03 = 5,667.30/x
3. Step 3: Cross multiply
   10,143.23x = 13,999.03 × 5,667.30
4. Step 4: Simplify right side
   10,143.23x = 79,336,688.55
5. Step 5: Solve for x
   x = 79,336,688.55/10,143.23
6. Step 6: Final answer
   x = 7,821.64