Finding the Fourth Proportional to 197,396.82, 272,397.24 and 111,353.31

Step by Step Solution

1. Step 1: Write the proportion equation
   197,396.82 : 272,397.24 = 111,353.31 : x
2. Step 2: Convert to fraction form
   197,396.82/272,397.24 = 111,353.31/x
3. Step 3: Cross multiply
   197,396.82x = 272,397.24 × 111,353.31
4. Step 4: Simplify right side
   197,396.82x = 30,332,334,308.86
5. Step 5: Solve for x
   x = 30,332,334,308.86/197,396.82
6. Step 6: Final answer
   x = 153,661.72