Finding the Fourth Proportional to 140,958.52, 194,624.78 and 90,745

Step by Step Solution

1. Step 1: Write the proportion equation
   140,958.52 : 194,624.78 = 90,745 : x
2. Step 2: Convert to fraction form
   140,958.52/194,624.78 = 90,745/x
3. Step 3: Cross multiply
   140,958.52x = 194,624.78 × 90,745
4. Step 4: Simplify right side
   140,958.52x = 17,661,225,661.10
5. Step 5: Solve for x
   x = 17,661,225,661.10/140,958.52
6. Step 6: Final answer
   x = 125,293.78