Finding the Fourth Proportional to 158,735.89, 219,055.35 and 87,116.10

Step by Step Solution

1. Step 1: Write the proportion equation
   158,735.89 : 219,055.35 = 87,116.10 : x
2. Step 2: Convert to fraction form
   158,735.89/219,055.35 = 87,116.10/x
3. Step 3: Cross multiply
   158,735.89x = 219,055.35 × 87,116.10
4. Step 4: Simplify right side
   158,735.89x = 19,083,247,776.14
5. Step 5: Solve for x
   x = 19,083,247,776.14/158,735.89
6. Step 6: Final answer
   x = 120,220.12