Finding the Fourth Proportional to 108,390.27, 162,374.99 and 79,875.46

Step by Step Solution

1. Step 1: Write the proportion equation
   108,390.27 : 162,374.99 = 79,875.46 : x
2. Step 2: Convert to fraction form
   108,390.27/162,374.99 = 79,875.46/x
3. Step 3: Cross multiply
   108,390.27x = 162,374.99 × 79,875.46
4. Step 4: Simplify right side
   108,390.27x = 12,969,776,213.43
5. Step 5: Solve for x
   x = 12,969,776,213.43/108,390.27
6. Step 6: Final answer
   x = 119,658.12