Finding the Fourth Proportional to 43,440.53, 65,146.91 and 13,851.43

Step by Step Solution

1. Step 1: Write the proportion equation
   43,440.53 : 65,146.91 = 13,851.43 : x
2. Step 2: Convert to fraction form
   43,440.53/65,146.91 = 13,851.43/x
3. Step 3: Cross multiply
   43,440.53x = 65,146.91 × 13,851.43
4. Step 4: Simplify right side
   43,440.53x = 902,377,631.46
5. Step 5: Solve for x
   x = 902,377,631.46/43,440.53
6. Step 6: Final answer
   x = 20,772.71