Finding the Fourth Proportional to 163,945.72, 226,247.77 and 91,348.71

Step by Step Solution

1. Step 1: Write the proportion equation
   163,945.72 : 226,247.77 = 91,348.71 : x
2. Step 2: Convert to fraction form
   163,945.72/226,247.77 = 91,348.71/x
3. Step 3: Cross multiply
   163,945.72x = 226,247.77 × 91,348.71
4. Step 4: Simplify right side
   163,945.72x = 20,667,442,339.82
5. Step 5: Solve for x
   x = 20,667,442,339.82/163,945.72
6. Step 6: Final answer
   x = 126,062.71