Finding the Fourth Proportional to 140,994.30, 194,584.62 and 77,344.50

Step by Step Solution

1. Step 1: Write the proportion equation
   140,994.30 : 194,584.62 = 77,344.50 : x
2. Step 2: Convert to fraction form
   140,994.30/194,584.62 = 77,344.50/x
3. Step 3: Cross multiply
   140,994.30x = 194,584.62 × 77,344.50
4. Step 4: Simplify right side
   140,994.30x = 15,050,050,141.59
5. Step 5: Solve for x
   x = 15,050,050,141.59/140,994.30
6. Step 6: Final answer
   x = 106,742.26