Finding the Fourth Proportional to 196,390.22, 271,026.33 and 111,515.18

Step by Step Solution

1. Step 1: Write the proportion equation
   196,390.22 : 271,026.33 = 111,515.18 : x
2. Step 2: Convert to fraction form
   196,390.22/271,026.33 = 111,515.18/x
3. Step 3: Cross multiply
   196,390.22x = 271,026.33 × 111,515.18
4. Step 4: Simplify right side
   196,390.22x = 30,223,549,974.69
5. Step 5: Solve for x
   x = 30,223,549,974.69/196,390.22
6. Step 6: Final answer
   x = 153,895.39