Finding the Fourth Proportional to 107,173.15, 160,726.89 and 74,105.71

Step by Step Solution

1. Step 1: Write the proportion equation
   107,173.15 : 160,726.89 = 74,105.71 : x
2. Step 2: Convert to fraction form
   107,173.15/160,726.89 = 74,105.71/x
3. Step 3: Cross multiply
   107,173.15x = 160,726.89 × 74,105.71
4. Step 4: Simplify right side
   107,173.15x = 11,910,780,299.54
5. Step 5: Solve for x
   x = 11,910,780,299.54/107,173.15
6. Step 6: Final answer
   x = 111,135.86