Finding the Fourth Proportional to 108,390.20, 162,374.90 and 79,875.41

Step by Step Solution

1. Step 1: Write the proportion equation
   108,390.20 : 162,374.90 = 79,875.41 : x
2. Step 2: Convert to fraction form
   108,390.20/162,374.90 = 79,875.41/x
3. Step 3: Cross multiply
   108,390.20x = 162,374.90 × 79,875.41
4. Step 4: Simplify right side
   108,390.20x = 12,969,760,499.96
5. Step 5: Solve for x
   x = 12,969,760,499.96/108,390.20
6. Step 6: Final answer
   x = 119,658.06