Finding the Fourth Proportional to 141,016.38, 194,492.61 and 87,331.20

Step by Step Solution

1. Step 1: Write the proportion equation
   141,016.38 : 194,492.61 = 87,331.20 : x
2. Step 2: Convert to fraction form
   141,016.38/194,492.61 = 87,331.20/x
3. Step 3: Cross multiply
   141,016.38x = 194,492.61 × 87,331.20
4. Step 4: Simplify right side
   141,016.38x = 16,985,273,022.43
5. Step 5: Solve for x
   x = 16,985,273,022.43/141,016.38
6. Step 6: Final answer
   x = 120,448.94