Finding the Fourth Proportional to 197,061.28, 271,952.12 and 111,054.48

Step by Step Solution

1. Step 1: Write the proportion equation
   197,061.28 : 271,952.12 = 111,054.48 : x
2. Step 2: Convert to fraction form
   197,061.28/271,952.12 = 111,054.48/x
3. Step 3: Cross multiply
   197,061.28x = 271,952.12 × 111,054.48
4. Step 4: Simplify right side
   197,061.28x = 30,201,501,271.50
5. Step 5: Solve for x
   x = 30,201,501,271.50/197,061.28
6. Step 6: Final answer
   x = 153,259.44