Finding the Fourth Proportional to 71,499, 107,178.78 and 34,049.07

Step by Step Solution

1. Step 1: Write the proportion equation
   71,499 : 107,178.78 = 34,049.07 : x
2. Step 2: Convert to fraction form
   71,499/107,178.78 = 34,049.07/x
3. Step 3: Cross multiply
   71,499x = 107,178.78 × 34,049.07
4. Step 4: Simplify right side
   71,499x = 3,649,337,782.73
5. Step 5: Solve for x
   x = 3,649,337,782.73/71,499
6. Step 6: Final answer
   x = 51,040.40