Finding the Fourth Proportional to 8,109.72, 11,191.42 and 4,383.72

Step by Step Solution

1. Step 1: Write the proportion equation
   8,109.72 : 11,191.42 = 4,383.72 : x
2. Step 2: Convert to fraction form
   8,109.72/11,191.42 = 4,383.72/x
3. Step 3: Cross multiply
   8,109.72x = 11,191.42 × 4,383.72
4. Step 4: Simplify right side
   8,109.72x = 49,060,068.70
5. Step 5: Solve for x
   x = 49,060,068.70/8,109.72
6. Step 6: Final answer
   x = 6,049.54