Finding the Fourth Proportional to 140,910.24, 194,457.72 and 80,488.86

Step by Step Solution

1. Step 1: Write the proportion equation
   140,910.24 : 194,457.72 = 80,488.86 : x
2. Step 2: Convert to fraction form
   140,910.24/194,457.72 = 80,488.86/x
3. Step 3: Cross multiply
   140,910.24x = 194,457.72 × 80,488.86
4. Step 4: Simplify right side
   140,910.24x = 15,651,680,201.00
5. Step 5: Solve for x
   x = 15,651,680,201.00/140,910.24
6. Step 6: Final answer
   x = 111,075.53