Finding the Fourth Proportional to 140,994.37, 194,578.30 and 80,569.69

Step by Step Solution

1. Step 1: Write the proportion equation
   140,994.37 : 194,578.30 = 80,569.69 : x
2. Step 2: Convert to fraction form
   140,994.37/194,578.30 = 80,569.69/x
3. Step 3: Cross multiply
   140,994.37x = 194,578.30 × 80,569.69
4. Step 4: Simplify right side
   140,994.37x = 15,677,112,925.99
5. Step 5: Solve for x
   x = 15,677,112,925.99/140,994.37
6. Step 6: Final answer
   x = 111,189.64