Finding the Fourth Proportional to 140,880.18, 194,434.58 and 87,182.49

Step by Step Solution

1. Step 1: Write the proportion equation
   140,880.18 : 194,434.58 = 87,182.49 : x
2. Step 2: Convert to fraction form
   140,880.18/194,434.58 = 87,182.49/x
3. Step 3: Cross multiply
   140,880.18x = 194,434.58 × 87,182.49
4. Step 4: Simplify right side
   140,880.18x = 16,951,290,826.50
5. Step 5: Solve for x
   x = 16,951,290,826.50/140,880.18
6. Step 6: Final answer
   x = 120,324.17