Finding the Fourth Proportional to 103,676.34, 143,142.21 and 79,760.82

Step by Step Solution

1. Step 1: Write the proportion equation
   103,676.34 : 143,142.21 = 79,760.82 : x
2. Step 2: Convert to fraction form
   103,676.34/143,142.21 = 79,760.82/x
3. Step 3: Cross multiply
   103,676.34x = 143,142.21 × 79,760.82
4. Step 4: Simplify right side
   103,676.34x = 11,417,140,046.21
5. Step 5: Solve for x
   x = 11,417,140,046.21/103,676.34
6. Step 6: Final answer
   x = 110,122.91