Finding the Fourth Proportional to 43,485.54, 65,236.41 and 13,910.82

Step by Step Solution

1. Step 1: Write the proportion equation
   43,485.54 : 65,236.41 = 13,910.82 : x
2. Step 2: Convert to fraction form
   43,485.54/65,236.41 = 13,910.82/x
3. Step 3: Cross multiply
   43,485.54x = 65,236.41 × 13,910.82
4. Step 4: Simplify right side
   43,485.54x = 907,491,956.96
5. Step 5: Solve for x
   x = 907,491,956.96/43,485.54
6. Step 6: Final answer
   x = 20,868.82