Finding the Fourth Proportional to 168,613.72, 253,045.31 and 79,867.42

Step by Step Solution

1. Step 1: Write the proportion equation
   168,613.72 : 253,045.31 = 79,867.42 : x
2. Step 2: Convert to fraction form
   168,613.72/253,045.31 = 79,867.42/x
3. Step 3: Cross multiply
   168,613.72x = 253,045.31 × 79,867.42
4. Step 4: Simplify right side
   168,613.72x = 20,210,076,052.80
5. Step 5: Solve for x
   x = 20,210,076,052.80/168,613.72
6. Step 6: Final answer
   x = 119,860.21