Finding the Fourth Proportional to 71,404.36, 107,109.28 and 21,491.56

Step by Step Solution

1. Step 1: Write the proportion equation
   71,404.36 : 107,109.28 = 21,491.56 : x
2. Step 2: Convert to fraction form
   71,404.36/107,109.28 = 21,491.56/x
3. Step 3: Cross multiply
   71,404.36x = 107,109.28 × 21,491.56
4. Step 4: Simplify right side
   71,404.36x = 2,301,945,517.68
5. Step 5: Solve for x
   x = 2,301,945,517.68/71,404.36
6. Step 6: Final answer
   x = 32,238.16