Finding the Fourth Proportional to 140,770.52, 194,261.78 and 76,238.69

Step by Step Solution

1. Step 1: Write the proportion equation
   140,770.52 : 194,261.78 = 76,238.69 : x
2. Step 2: Convert to fraction form
   140,770.52/194,261.78 = 76,238.69/x
3. Step 3: Cross multiply
   140,770.52x = 194,261.78 × 76,238.69
4. Step 4: Simplify right side
   140,770.52x = 14,810,264,300.52
5. Step 5: Solve for x
   x = 14,810,264,300.52/140,770.52
6. Step 6: Final answer
   x = 105,208.57