Finding the Fourth Proportional to 43,448.72, 65,176.04 and 13,868.78

Step by Step Solution

1. Step 1: Write the proportion equation
   43,448.72 : 65,176.04 = 13,868.78 : x
2. Step 2: Convert to fraction form
   43,448.72/65,176.04 = 13,868.78/x
3. Step 3: Cross multiply
   43,448.72x = 65,176.04 × 13,868.78
4. Step 4: Simplify right side
   43,448.72x = 903,912,160.03
5. Step 5: Solve for x
   x = 903,912,160.03/43,448.72
6. Step 6: Final answer
   x = 20,804.11