Finding the Fourth Proportional to 117,561.16, 162,284.04 and 79,372.42

Step by Step Solution

1. Step 1: Write the proportion equation
   117,561.16 : 162,284.04 = 79,372.42 : x
2. Step 2: Convert to fraction form
   117,561.16/162,284.04 = 79,372.42/x
3. Step 3: Cross multiply
   117,561.16x = 162,284.04 × 79,372.42
4. Step 4: Simplify right side
   117,561.16x = 12,880,876,982.18
5. Step 5: Solve for x
   x = 12,880,876,982.18/117,561.16
6. Step 6: Final answer
   x = 109,567.45