Finding the Fourth Proportional to 43,440.98, 65,168.21 and 13,856.00

Step by Step Solution

1. Step 1: Write the proportion equation
   43,440.98 : 65,168.21 = 13,856.00 : x
2. Step 2: Convert to fraction form
   43,440.98/65,168.21 = 13,856.00/x
3. Step 3: Cross multiply
   43,440.98x = 65,168.21 × 13,856.00
4. Step 4: Simplify right side
   43,440.98x = 902,970,426.56
5. Step 5: Solve for x
   x = 902,970,426.56/43,440.98
6. Step 6: Final answer
   x = 20,786.15