Finding the Fourth Proportional to 71,449.38, 107,178.12 and 21,536.37

Step by Step Solution

1. Step 1: Write the proportion equation
   71,449.38 : 107,178.12 = 21,536.37 : x
2. Step 2: Convert to fraction form
   71,449.38/107,178.12 = 21,536.37/x
3. Step 3: Cross multiply
   71,449.38x = 107,178.12 × 21,536.37
4. Step 4: Simplify right side
   71,449.38x = 2,308,227,648.22
5. Step 5: Solve for x
   x = 2,308,227,648.22/71,449.38
6. Step 6: Final answer
   x = 32,305.78