Finding the Fourth Proportional to 140,795.40, 194,298.30 and 77,133

Step by Step Solution

1. Step 1: Write the proportion equation
   140,795.40 : 194,298.30 = 77,133 : x
2. Step 2: Convert to fraction form
   140,795.40/194,298.30 = 77,133/x
3. Step 3: Cross multiply
   140,795.40x = 194,298.30 × 77,133
4. Step 4: Simplify right side
   140,795.40x = 14,986,810,773.90
5. Step 5: Solve for x
   x = 14,986,810,773.90/140,795.40
6. Step 6: Final answer
   x = 106,443.89