Finding the Fourth Proportional to 158,541.37, 218,781.27 and 86,919.82

Step by Step Solution

1. Step 1: Write the proportion equation
   158,541.37 : 218,781.27 = 86,919.82 : x
2. Step 2: Convert to fraction form
   158,541.37/218,781.27 = 86,919.82/x
3. Step 3: Cross multiply
   158,541.37x = 218,781.27 × 86,919.82
4. Step 4: Simplify right side
   158,541.37x = 19,016,428,607.77
5. Step 5: Solve for x
   x = 19,016,428,607.77/158,541.37
6. Step 6: Final answer
   x = 119,946.16