Finding the Fourth Proportional to 108,389.33, 162,373.60 and 79,874.54

Step by Step Solution

1. Step 1: Write the proportion equation
   108,389.33 : 162,373.60 = 79,874.54 : x
2. Step 2: Convert to fraction form
   108,389.33/162,373.60 = 79,874.54/x
3. Step 3: Cross multiply
   108,389.33x = 162,373.60 × 79,874.54
4. Step 4: Simplify right side
   108,389.33x = 12,969,516,505.02
5. Step 5: Solve for x
   x = 12,969,516,505.02/108,389.33
6. Step 6: Final answer
   x = 119,656.77