Finding the Fourth Proportional to 109,144.28, 163,715.82 and 28,091.24

Step by Step Solution

1. Step 1: Write the proportion equation
   109,144.28 : 163,715.82 = 28,091.24 : x
2. Step 2: Convert to fraction form
   109,144.28/163,715.82 = 28,091.24/x
3. Step 3: Cross multiply
   109,144.28x = 163,715.82 × 28,091.24
4. Step 4: Simplify right side
   109,144.28x = 4,598,980,391.42
5. Step 5: Solve for x
   x = 4,598,980,391.42/109,144.28
6. Step 6: Final answer
   x = 42,136.71