Finding the Fourth Proportional to 158,719.47, 219,035.60 and 87,106.16

Step by Step Solution

1. Step 1: Write the proportion equation
   158,719.47 : 219,035.60 = 87,106.16 : x
2. Step 2: Convert to fraction form
   158,719.47/219,035.60 = 87,106.16/x
3. Step 3: Cross multiply
   158,719.47x = 219,035.60 × 87,106.16
4. Step 4: Simplify right side
   158,719.47x = 19,079,348,488.59
5. Step 5: Solve for x
   x = 19,079,348,488.59/158,719.47
6. Step 6: Final answer
   x = 120,207.99