Finding the Fourth Proportional to 43,498.78, 65,256.37 and 13,908.67

Step by Step Solution

1. Step 1: Write the proportion equation
   43,498.78 : 65,256.37 = 13,908.67 : x
2. Step 2: Convert to fraction form
   43,498.78/65,256.37 = 13,908.67/x
3. Step 3: Cross multiply
   43,498.78x = 65,256.37 × 13,908.67
4. Step 4: Simplify right side
   43,498.78x = 907,629,117.82
5. Step 5: Solve for x
   x = 907,629,117.82/43,498.78
6. Step 6: Final answer
   x = 20,865.62