Finding the Fourth Proportional to 158,780.82, 219,116.67 and 87,162.06

Step by Step Solution

1. Step 1: Write the proportion equation
   158,780.82 : 219,116.67 = 87,162.06 : x
2. Step 2: Convert to fraction form
   158,780.82/219,116.67 = 87,162.06/x
3. Step 3: Cross multiply
   158,780.82x = 219,116.67 × 87,162.06
4. Step 4: Simplify right side
   158,780.82x = 19,098,660,337.54
5. Step 5: Solve for x
   x = 19,098,660,337.54/158,780.82
6. Step 6: Final answer
   x = 120,283.17