Finding the Fourth Proportional to 10,143.12, 13,996.32 and 5,667.06

Step by Step Solution

1. Step 1: Write the proportion equation
   10,143.12 : 13,996.32 = 5,667.06 : x
2. Step 2: Convert to fraction form
   10,143.12/13,996.32 = 5,667.06/x
3. Step 3: Cross multiply
   10,143.12x = 13,996.32 × 5,667.06
4. Step 4: Simplify right side
   10,143.12x = 79,317,985.22
5. Step 5: Solve for x
   x = 79,317,985.22/10,143.12
6. Step 6: Final answer
   x = 7,819.88