Finding the Fourth Proportional to 196,407.72, 271,050.48 and 111,532.68

Step by Step Solution

1. Step 1: Write the proportion equation
   196,407.72 : 271,050.48 = 111,532.68 : x
2. Step 2: Convert to fraction form
   196,407.72/271,050.48 = 111,532.68/x
3. Step 3: Cross multiply
   196,407.72x = 271,050.48 × 111,532.68
4. Step 4: Simplify right side
   196,407.72x = 30,230,986,449.69
5. Step 5: Solve for x
   x = 30,230,986,449.69/196,407.72
6. Step 6: Final answer
   x = 153,919.54