Finding the Fourth Proportional to 158,276.00, 218,412.27 and 86,642.18

Step by Step Solution

1. Step 1: Write the proportion equation
   158,276.00 : 218,412.27 = 86,642.18 : x
2. Step 2: Convert to fraction form
   158,276.00/218,412.27 = 86,642.18/x
3. Step 3: Cross multiply
   158,276.00x = 218,412.27 × 86,642.18
4. Step 4: Simplify right side
   158,276.00x = 18,923,714,119.49
5. Step 5: Solve for x
   x = 18,923,714,119.49/158,276.00
6. Step 6: Final answer
   x = 119,561.49