Finding the Fourth Proportional to 199,064.56, 274,709.10 and 109,640.56

Step by Step Solution

1. Step 1: Write the proportion equation
   199,064.56 : 274,709.10 = 109,640.56 : x
2. Step 2: Convert to fraction form
   199,064.56/274,709.10 = 109,640.56/x
3. Step 3: Cross multiply
   199,064.56x = 274,709.10 × 109,640.56
4. Step 4: Simplify right side
   199,064.56x = 30,119,259,561.10
5. Step 5: Solve for x
   x = 30,119,259,561.10/199,064.56
6. Step 6: Final answer
   x = 151,303.98