Finding the Fourth Proportional to 108,404.96, 162,396.82 and 79,890.12

Step by Step Solution

1. Step 1: Write the proportion equation
   108,404.96 : 162,396.82 = 79,890.12 : x
2. Step 2: Convert to fraction form
   108,404.96/162,396.82 = 79,890.12/x
3. Step 3: Cross multiply
   108,404.96x = 162,396.82 × 79,890.12
4. Step 4: Simplify right side
   108,404.96x = 12,973,901,437.42
5. Step 5: Solve for x
   x = 12,973,901,437.42/108,404.96
6. Step 6: Final answer
   x = 119,679.96