Finding the Fourth Proportional to 71,047.30, 106,628.55 and 68,743.30

Step by Step Solution

1. Step 1: Write the proportion equation
   71,047.30 : 106,628.55 = 68,743.30 : x
2. Step 2: Convert to fraction form
   71,047.30/106,628.55 = 68,743.30/x
3. Step 3: Cross multiply
   71,047.30x = 106,628.55 × 68,743.30
4. Step 4: Simplify right side
   71,047.30x = 7,329,998,401.22
5. Step 5: Solve for x
   x = 7,329,998,401.22/71,047.30
6. Step 6: Final answer
   x = 103,170.68