Finding the Fourth Proportional to 71,393.97, 107,105.94 and 21,477.72

Step by Step Solution

1. Step 1: Write the proportion equation
   71,393.97 : 107,105.94 = 21,477.72 : x
2. Step 2: Convert to fraction form
   71,393.97/107,105.94 = 21,477.72/x
3. Step 3: Cross multiply
   71,393.97x = 107,105.94 × 21,477.72
4. Step 4: Simplify right side
   71,393.97x = 2,300,391,389.66
5. Step 5: Solve for x
   x = 2,300,391,389.66/71,393.97
6. Step 6: Final answer
   x = 32,221.09