Finding the Fourth Proportional to 198,574.72, 274,054.72 and 113,719.68

Step by Step Solution

1. Step 1: Write the proportion equation
   198,574.72 : 274,054.72 = 113,719.68 : x
2. Step 2: Convert to fraction form
   198,574.72/274,054.72 = 113,719.68/x
3. Step 3: Cross multiply
   198,574.72x = 274,054.72 × 113,719.68
4. Step 4: Simplify right side
   198,574.72x = 31,165,415,060.89
5. Step 5: Solve for x
   x = 31,165,415,060.89/198,574.72
6. Step 6: Final answer
   x = 156,945.53