Finding the Fourth Proportional to 199,081, 274,731.78 and 109,657

Step by Step Solution

1. Step 1: Write the proportion equation
   199,081 : 274,731.78 = 109,657 : x
2. Step 2: Convert to fraction form
   199,081/274,731.78 = 109,657/x
3. Step 3: Cross multiply
   199,081x = 274,731.78 × 109,657
4. Step 4: Simplify right side
   199,081x = 30,126,262,799.46
5. Step 5: Solve for x
   x = 30,126,262,799.46/199,081
6. Step 6: Final answer
   x = 151,326.66