Finding the Fourth Proportional to 140,765.52, 194,256.46 and 77,105.60

Step by Step Solution

1. Step 1: Write the proportion equation
   140,765.52 : 194,256.46 = 77,105.60 : x
2. Step 2: Convert to fraction form
   140,765.52/194,256.46 = 77,105.60/x
3. Step 3: Cross multiply
   140,765.52x = 194,256.46 × 77,105.60
4. Step 4: Simplify right side
   140,765.52x = 14,978,260,902.18
5. Step 5: Solve for x
   x = 14,978,260,902.18/140,765.52
6. Step 6: Final answer
   x = 106,405.75