Finding the Fourth Proportional to 200,399.78, 276,554.86 and 109,754.12

Step by Step Solution

1. Step 1: Write the proportion equation
   200,399.78 : 276,554.86 = 109,754.12 : x
2. Step 2: Convert to fraction form
   200,399.78/276,554.86 = 109,754.12/x
3. Step 3: Cross multiply
   200,399.78x = 276,554.86 × 109,754.12
4. Step 4: Simplify right side
   200,399.78x = 30,353,035,291.02
5. Step 5: Solve for x
   x = 30,353,035,291.02/200,399.78
6. Step 6: Final answer
   x = 151,462.42