Finding the Fourth Proportional to 140,410.25, 193,766.15 and 76,748.30

Step by Step Solution

1. Step 1: Write the proportion equation
   140,410.25 : 193,766.15 = 76,748.30 : x
2. Step 2: Convert to fraction form
   140,410.25/193,766.15 = 76,748.30/x
3. Step 3: Cross multiply
   140,410.25x = 193,766.15 × 76,748.30
4. Step 4: Simplify right side
   140,410.25x = 14,871,222,610.05
5. Step 5: Solve for x
   x = 14,871,222,610.05/140,410.25
6. Step 6: Final answer
   x = 105,912.66