Finding the Fourth Proportional to 276,111.24, 414,210.69 and 89,079

Step by Step Solution

1. Step 1: Write the proportion equation
   276,111.24 : 414,210.69 = 89,079 : x
2. Step 2: Convert to fraction form
   276,111.24/414,210.69 = 89,079/x
3. Step 3: Cross multiply
   276,111.24x = 414,210.69 × 89,079
4. Step 4: Simplify right side
   276,111.24x = 36,897,474,054.51
5. Step 5: Solve for x
   x = 36,897,474,054.51/276,111.24
6. Step 6: Final answer
   x = 133,632.64