Finding the Fourth Proportional to 196,573.18, 271,269.61 and 111,690.24

Step by Step Solution

1. Step 1: Write the proportion equation
   196,573.18 : 271,269.61 = 111,690.24 : x
2. Step 2: Convert to fraction form
   196,573.18/271,269.61 = 111,690.24/x
3. Step 3: Cross multiply
   196,573.18x = 271,269.61 × 111,690.24
4. Step 4: Simplify right side
   196,573.18x = 30,298,167,845.61
5. Step 5: Solve for x
   x = 30,298,167,845.61/196,573.18
6. Step 6: Final answer
   x = 154,131.75