Finding the Fourth Proportional to 79,141.57, 109,225.79 and 45,142.27

Step by Step Solution

1. Step 1: Write the proportion equation
   79,141.57 : 109,225.79 = 45,142.27 : x
2. Step 2: Convert to fraction form
   79,141.57/109,225.79 = 45,142.27/x
3. Step 3: Cross multiply
   79,141.57x = 109,225.79 × 45,142.27
4. Step 4: Simplify right side
   79,141.57x = 4,930,700,103.14
5. Step 5: Solve for x
   x = 4,930,700,103.14/79,141.57
6. Step 6: Final answer
   x = 62,302.28