Finding the Fourth Proportional to 124,155, 185,789.43 and 107,571.87

Step by Step Solution

1. Step 1: Write the proportion equation
   124,155 : 185,789.43 = 107,571.87 : x
2. Step 2: Convert to fraction form
   124,155/185,789.43 = 107,571.87/x
3. Step 3: Cross multiply
   124,155x = 185,789.43 × 107,571.87
4. Step 4: Simplify right side
   124,155x = 19,985,716,411.33
5. Step 5: Solve for x
   x = 19,985,716,411.33/124,155
6. Step 6: Final answer
   x = 160,973.91