Finding the Fourth Proportional to 140,008.50, 193,216.59 and 79,581.69

Step by Step Solution

1. Step 1: Write the proportion equation
   140,008.50 : 193,216.59 = 79,581.69 : x
2. Step 2: Convert to fraction form
   140,008.50/193,216.59 = 79,581.69/x
3. Step 3: Cross multiply
   140,008.50x = 193,216.59 × 79,581.69
4. Step 4: Simplify right side
   140,008.50x = 15,376,502,768.24
5. Step 5: Solve for x
   x = 15,376,502,768.24/140,008.50
6. Step 6: Final answer
   x = 109,825.49