Finding the Fourth Proportional to 196,835.28, 271,647.72 and 111,947.28

Step by Step Solution

1. Step 1: Write the proportion equation
   196,835.28 : 271,647.72 = 111,947.28 : x
2. Step 2: Convert to fraction form
   196,835.28/271,647.72 = 111,947.28/x
3. Step 3: Cross multiply
   196,835.28x = 271,647.72 × 111,947.28
4. Step 4: Simplify right side
   196,835.28x = 30,410,223,372.20
5. Step 5: Solve for x
   x = 30,410,223,372.20/196,835.28
6. Step 6: Final answer
   x = 154,495.80