Finding the Fourth Proportional to 43,404.18, 65,110.88 and 13,815.09

Step by Step Solution

1. Step 1: Write the proportion equation
   43,404.18 : 65,110.88 = 13,815.09 : x
2. Step 2: Convert to fraction form
   43,404.18/65,110.88 = 13,815.09/x
3. Step 3: Cross multiply
   43,404.18x = 65,110.88 × 13,815.09
4. Step 4: Simplify right side
   43,404.18x = 899,512,667.18
5. Step 5: Solve for x
   x = 899,512,667.18/43,404.18
6. Step 6: Final answer
   x = 20,724.10