Finding the Fourth Proportional to 10,383.12, 14,328.90 and 5,667.57

Step by Step Solution

1. Step 1: Write the proportion equation
   10,383.12 : 14,328.90 = 5,667.57 : x
2. Step 2: Convert to fraction form
   10,383.12/14,328.90 = 5,667.57/x
3. Step 3: Cross multiply
   10,383.12x = 14,328.90 × 5,667.57
4. Step 4: Simplify right side
   10,383.12x = 81,210,043.77
5. Step 5: Solve for x
   x = 81,210,043.77/10,383.12
6. Step 6: Final answer
   x = 7,821.35