Finding the Fourth Proportional to 140,793, 194,294.34 and 77,131.05

Step by Step Solution

1. Step 1: Write the proportion equation
   140,793 : 194,294.34 = 77,131.05 : x
2. Step 2: Convert to fraction form
   140,793/194,294.34 = 77,131.05/x
3. Step 3: Cross multiply
   140,793x = 194,294.34 × 77,131.05
4. Step 4: Simplify right side
   140,793x = 14,986,126,453.26
5. Step 5: Solve for x
   x = 14,986,126,453.26/140,793
6. Step 6: Final answer
   x = 106,440.85