Finding the Fourth Proportional to 140,617.20, 194,021.72 and 83,274.54

Step by Step Solution

1. Step 1: Write the proportion equation
   140,617.20 : 194,021.72 = 83,274.54 : x
2. Step 2: Convert to fraction form
   140,617.20/194,021.72 = 83,274.54/x
3. Step 3: Cross multiply
   140,617.20x = 194,021.72 × 83,274.54
4. Step 4: Simplify right side
   140,617.20x = 16,157,069,483.01
5. Step 5: Solve for x
   x = 16,157,069,483.01/140,617.20
6. Step 6: Final answer
   x = 114,901.09