Finding the Fourth Proportional to 276,818.22, 414,964.89 and 89,698.50

Step by Step Solution

1. Step 1: Write the proportion equation
   276,818.22 : 414,964.89 = 89,698.50 : x
2. Step 2: Convert to fraction form
   276,818.22/414,964.89 = 89,698.50/x
3. Step 3: Cross multiply
   276,818.22x = 414,964.89 × 89,698.50
4. Step 4: Simplify right side
   276,818.22x = 37,221,728,185.67
5. Step 5: Solve for x
   x = 37,221,728,185.67/276,818.22
6. Step 6: Final answer
   x = 134,462.71