Finding the Fourth Proportional to 276,054.30, 414,080.94 and 86,529.24

Step by Step Solution

1. Step 1: Write the proportion equation
   276,054.30 : 414,080.94 = 86,529.24 : x
2. Step 2: Convert to fraction form
   276,054.30/414,080.94 = 86,529.24/x
3. Step 3: Cross multiply
   276,054.30x = 414,080.94 × 86,529.24
4. Step 4: Simplify right side
   276,054.30x = 35,830,109,036.69
5. Step 5: Solve for x
   x = 35,830,109,036.69/276,054.30
6. Step 6: Final answer
   x = 129,793.70