Finding the Fourth Proportional to 158,706.69, 219,007.71 and 87,085.14

Step by Step Solution

1. Step 1: Write the proportion equation
   158,706.69 : 219,007.71 = 87,085.14 : x
2. Step 2: Convert to fraction form
   158,706.69/219,007.71 = 87,085.14/x
3. Step 3: Cross multiply
   158,706.69x = 219,007.71 × 87,085.14
4. Step 4: Simplify right side
   158,706.69x = 19,072,317,086.43
5. Step 5: Solve for x
   x = 19,072,317,086.43/158,706.69
6. Step 6: Final answer
   x = 120,173.37