Finding the Fourth Proportional to 158,783.63, 219,123.98 and 86,187.96

Step by Step Solution

1. Step 1: Write the proportion equation
   158,783.63 : 219,123.98 = 86,187.96 : x
2. Step 2: Convert to fraction form
   158,783.63/219,123.98 = 86,187.96/x
3. Step 3: Cross multiply
   158,783.63x = 219,123.98 × 86,187.96
4. Step 4: Simplify right side
   158,783.63x = 18,885,847,856.86
5. Step 5: Solve for x
   x = 18,885,847,856.86/158,783.63
6. Step 6: Final answer
   x = 118,940.78