Finding the Fourth Proportional to 196,380.40, 271,006.74 and 111,499.26

Step by Step Solution

1. Step 1: Write the proportion equation
   196,380.40 : 271,006.74 = 111,499.26 : x
2. Step 2: Convert to fraction form
   196,380.40/271,006.74 = 111,499.26/x
3. Step 3: Cross multiply
   196,380.40x = 271,006.74 × 111,499.26
4. Step 4: Simplify right side
   196,380.40x = 30,217,050,965.01
5. Step 5: Solve for x
   x = 30,217,050,965.01/196,380.40
6. Step 6: Final answer
   x = 153,869.99