Finding the Fourth Proportional to 158,870.52, 219,241.62 and 87,255.18

Step by Step Solution

1. Step 1: Write the proportion equation
   158,870.52 : 219,241.62 = 87,255.18 : x
2. Step 2: Convert to fraction form
   158,870.52/219,241.62 = 87,255.18/x
3. Step 3: Cross multiply
   158,870.52x = 219,241.62 × 87,255.18
4. Step 4: Simplify right side
   158,870.52x = 19,129,967,016.59
5. Step 5: Solve for x
   x = 19,129,967,016.59/158,870.52
6. Step 6: Final answer
   x = 120,412.31