Finding the Fourth Proportional to 71,441.38, 107,166.12 and 21,528.37

Step by Step Solution

1. Step 1: Write the proportion equation
   71,441.38 : 107,166.12 = 21,528.37 : x
2. Step 2: Convert to fraction form
   71,441.38/107,166.12 = 21,528.37/x
3. Step 3: Cross multiply
   71,441.38x = 107,166.12 × 21,528.37
4. Step 4: Simplify right side
   71,441.38x = 2,307,111,882.82
5. Step 5: Solve for x
   x = 2,307,111,882.82/71,441.38
6. Step 6: Final answer
   x = 32,293.78