Finding the Fourth Proportional to 43,499.71, 65,238.91 and 13,911.42

Step by Step Solution

1. Step 1: Write the proportion equation
   43,499.71 : 65,238.91 = 13,911.42 : x
2. Step 2: Convert to fraction form
   43,499.71/65,238.91 = 13,911.42/x
3. Step 3: Cross multiply
   43,499.71x = 65,238.91 × 13,911.42
4. Step 4: Simplify right side
   43,499.71x = 907,565,877.35
5. Step 5: Solve for x
   x = 907,565,877.35/43,499.71
6. Step 6: Final answer
   x = 20,863.72