Finding the Fourth Proportional to 158,701.57, 219,007.56 and 87,082.79

Step by Step Solution

1. Step 1: Write the proportion equation
   158,701.57 : 219,007.56 = 87,082.79 : x
2. Step 2: Convert to fraction form
   158,701.57/219,007.56 = 87,082.79/x
3. Step 3: Cross multiply
   158,701.57x = 219,007.56 × 87,082.79
4. Step 4: Simplify right side
   158,701.57x = 19,071,788,808.37
5. Step 5: Solve for x
   x = 19,071,788,808.37/158,701.57
6. Step 6: Final answer
   x = 120,173.91