Finding the Fourth Proportional to 140,790.38, 194,290.72 and 84,201.75

Step by Step Solution

1. Step 1: Write the proportion equation
   140,790.38 : 194,290.72 = 84,201.75 : x
2. Step 2: Convert to fraction form
   140,790.38/194,290.72 = 84,201.75/x
3. Step 3: Cross multiply
   140,790.38x = 194,290.72 × 84,201.75
4. Step 4: Simplify right side
   140,790.38x = 16,359,618,422.26
5. Step 5: Solve for x
   x = 16,359,618,422.26/140,790.38
6. Step 6: Final answer
   x = 116,198.42