Finding the Fourth Proportional to 43,498.67, 65,241.79 and 13,912.61

Step by Step Solution

1. Step 1: Write the proportion equation
   43,498.67 : 65,241.79 = 13,912.61 : x
2. Step 2: Convert to fraction form
   43,498.67/65,241.79 = 13,912.61/x
3. Step 3: Cross multiply
   43,498.67x = 65,241.79 × 13,912.61
4. Step 4: Simplify right side
   43,498.67x = 907,683,218.98
5. Step 5: Solve for x
   x = 907,683,218.98/43,498.67
6. Step 6: Final answer
   x = 20,866.92