Finding the Fourth Proportional to 82,321.70, 123,468.19 and 23,143.30

Step by Step Solution

1. Step 1: Write the proportion equation
   82,321.70 : 123,468.19 = 23,143.30 : x
2. Step 2: Convert to fraction form
   82,321.70/123,468.19 = 23,143.30/x
3. Step 3: Cross multiply
   82,321.70x = 123,468.19 × 23,143.30
4. Step 4: Simplify right side
   82,321.70x = 2,857,460,744.29
5. Step 5: Solve for x
   x = 2,857,460,744.29/82,321.70
6. Step 6: Final answer
   x = 34,710.91