Finding the Fourth Proportional to 43,403.18, 65,109.38 and 13,814.09

Step by Step Solution

1. Step 1: Write the proportion equation
   43,403.18 : 65,109.38 = 13,814.09 : x
2. Step 2: Convert to fraction form
   43,403.18/65,109.38 = 13,814.09/x
3. Step 3: Cross multiply
   43,403.18x = 65,109.38 × 13,814.09
4. Step 4: Simplify right side
   43,403.18x = 899,426,928.87
5. Step 5: Solve for x
   x = 899,426,928.87/43,403.18
6. Step 6: Final answer
   x = 20,722.61