Finding the Fourth Proportional to 43,436.12, 65,112.56 and 13,834.77

Step by Step Solution

1. Step 1: Write the proportion equation
   43,436.12 : 65,112.56 = 13,834.77 : x
2. Step 2: Convert to fraction form
   43,436.12/65,112.56 = 13,834.77/x
3. Step 3: Cross multiply
   43,436.12x = 65,112.56 × 13,834.77
4. Step 4: Simplify right side
   43,436.12x = 900,817,030.25
5. Step 5: Solve for x
   x = 900,817,030.25/43,436.12
6. Step 6: Final answer
   x = 20,738.90