Finding the Fourth Proportional to 71,408.27, 107,139.04 and 38,109.83

Step by Step Solution

1. Step 1: Write the proportion equation
   71,408.27 : 107,139.04 = 38,109.83 : x
2. Step 2: Convert to fraction form
   71,408.27/107,139.04 = 38,109.83/x
3. Step 3: Cross multiply
   71,408.27x = 107,139.04 × 38,109.83
4. Step 4: Simplify right side
   71,408.27x = 4,083,049,969.79
5. Step 5: Solve for x
   x = 4,083,049,969.79/71,408.27
6. Step 6: Final answer
   x = 57,178.95