Finding the Fourth Proportional to 107,187.68, 160,789.20 and 28,301.12

Step by Step Solution

1. Step 1: Write the proportion equation
   107,187.68 : 160,789.20 = 28,301.12 : x
2. Step 2: Convert to fraction form
   107,187.68/160,789.20 = 28,301.12/x
3. Step 3: Cross multiply
   107,187.68x = 160,789.20 × 28,301.12
4. Step 4: Simplify right side
   107,187.68x = 4,550,514,443.90
5. Step 5: Solve for x
   x = 4,550,514,443.90/107,187.68
6. Step 6: Final answer
   x = 42,453.71