Finding the Fourth Proportional to 108,017.37, 161,871.61 and 79,329.30

Step by Step Solution

1. Step 1: Write the proportion equation
   108,017.37 : 161,871.61 = 79,329.30 : x
2. Step 2: Convert to fraction form
   108,017.37/161,871.61 = 79,329.30/x
3. Step 3: Cross multiply
   108,017.37x = 161,871.61 × 79,329.30
4. Step 4: Simplify right side
   108,017.37x = 12,841,161,511.17
5. Step 5: Solve for x
   x = 12,841,161,511.17/108,017.37
6. Step 6: Final answer
   x = 118,880.52