Finding the Fourth Proportional to 200,478.88, 276,648.96 and 109,816.72

Step by Step Solution

1. Step 1: Write the proportion equation
   200,478.88 : 276,648.96 = 109,816.72 : x
2. Step 2: Convert to fraction form
   200,478.88/276,648.96 = 109,816.72/x
3. Step 3: Cross multiply
   200,478.88x = 276,648.96 × 109,816.72
4. Step 4: Simplify right side
   200,478.88x = 30,380,681,378.61
5. Step 5: Solve for x
   x = 30,380,681,378.61/200,478.88
6. Step 6: Final answer
   x = 151,540.56