Finding the Fourth Proportional to 107,016.27, 160,525.62 and 28,138.47

Step by Step Solution

1. Step 1: Write the proportion equation
   107,016.27 : 160,525.62 = 28,138.47 : x
2. Step 2: Convert to fraction form
   107,016.27/160,525.62 = 28,138.47/x
3. Step 3: Cross multiply
   107,016.27x = 160,525.62 × 28,138.47
4. Step 4: Simplify right side
   107,016.27x = 4,516,945,342.60
5. Step 5: Solve for x
   x = 4,516,945,342.60/107,016.27
6. Step 6: Final answer
   x = 42,208.02