Finding the Fourth Proportional to 107,524.80, 161,399.24 and 105,112.50

Step by Step Solution

1. Step 1: Write the proportion equation
   107,524.80 : 161,399.24 = 105,112.50 : x
2. Step 2: Convert to fraction form
   107,524.80/161,399.24 = 105,112.50/x
3. Step 3: Cross multiply
   107,524.80x = 161,399.24 × 105,112.50
4. Step 4: Simplify right side
   107,524.80x = 16,965,077,614.50
5. Step 5: Solve for x
   x = 16,965,077,614.50/107,524.80
6. Step 6: Final answer
   x = 157,778.28