Finding the Fourth Proportional to 43,404.78, 65,109.06 and 21,236.82

Step by Step Solution

1. Step 1: Write the proportion equation
   43,404.78 : 65,109.06 = 21,236.82 : x
2. Step 2: Convert to fraction form
   43,404.78/65,109.06 = 21,236.82/x
3. Step 3: Cross multiply
   43,404.78x = 65,109.06 × 21,236.82
4. Step 4: Simplify right side
   43,404.78x = 1,382,709,387.59
5. Step 5: Solve for x
   x = 1,382,709,387.59/43,404.78
6. Step 6: Final answer
   x = 31,856.15