Finding the Fourth Proportional to 71,996.11, 107,981.86 and 19,393.29

Step by Step Solution

1. Step 1: Write the proportion equation
   71,996.11 : 107,981.86 = 19,393.29 : x
2. Step 2: Convert to fraction form
   71,996.11/107,981.86 = 19,393.29/x
3. Step 3: Cross multiply
   71,996.11x = 107,981.86 × 19,393.29
4. Step 4: Simplify right side
   71,996.11x = 2,094,123,525.72
5. Step 5: Solve for x
   x = 2,094,123,525.72/71,996.11
6. Step 6: Final answer
   x = 29,086.62