Finding the Fourth Proportional to 276,498.18, 414,863.91 and 164,392.56

Step by Step Solution

1. Step 1: Write the proportion equation
   276,498.18 : 414,863.91 = 164,392.56 : x
2. Step 2: Convert to fraction form
   276,498.18/414,863.91 = 164,392.56/x
3. Step 3: Cross multiply
   276,498.18x = 414,863.91 × 164,392.56
4. Step 4: Simplify right side
   276,498.18x = 68,200,540,216.51
5. Step 5: Solve for x
   x = 68,200,540,216.51/276,498.18
6. Step 6: Final answer
   x = 246,658.19