Finding the Fourth Proportional to 275,722.53, 380,498.61 and 154,863.82

Step by Step Solution

1. Step 1: Write the proportion equation
   275,722.53 : 380,498.61 = 154,863.82 : x
2. Step 2: Convert to fraction form
   275,722.53/380,498.61 = 154,863.82/x
3. Step 3: Cross multiply
   275,722.53x = 380,498.61 × 154,863.82
4. Step 4: Simplify right side
   275,722.53x = 58,925,468,249.29
5. Step 5: Solve for x
   x = 58,925,468,249.29/275,722.53
6. Step 6: Final answer
   x = 213,712.93