Finding the Fourth Proportional to 71,352.38, 107,024.46 and 21,431.37

Step by Step Solution

1. Step 1: Write the proportion equation
   71,352.38 : 107,024.46 = 21,431.37 : x
2. Step 2: Convert to fraction form
   71,352.38/107,024.46 = 21,431.37/x
3. Step 3: Cross multiply
   71,352.38x = 107,024.46 × 21,431.37
4. Step 4: Simplify right side
   71,352.38x = 2,293,680,801.31
5. Step 5: Solve for x
   x = 2,293,680,801.31/71,352.38
6. Step 6: Final answer
   x = 32,145.82