Finding the Fourth Proportional to 8,981.72, 13,469.33 and 3,788

Step by Step Solution

1. Step 1: Write the proportion equation
   8,981.72 : 13,469.33 = 3,788 : x
2. Step 2: Convert to fraction form
   8,981.72/13,469.33 = 3,788/x
3. Step 3: Cross multiply
   8,981.72x = 13,469.33 × 3,788
4. Step 4: Simplify right side
   8,981.72x = 51,021,822.04
5. Step 5: Solve for x
   x = 51,021,822.04/8,981.72
6. Step 6: Final answer
   x = 5,680.63