Finding the Fourth Proportional to 82,043.16, 123,020.88 and 42,502.20

Step by Step Solution

1. Step 1: Write the proportion equation
   82,043.16 : 123,020.88 = 42,502.20 : x
2. Step 2: Convert to fraction form
   82,043.16/123,020.88 = 42,502.20/x
3. Step 3: Cross multiply
   82,043.16x = 123,020.88 × 42,502.20
4. Step 4: Simplify right side
   82,043.16x = 5,228,658,045.94
5. Step 5: Solve for x
   x = 5,228,658,045.94/82,043.16
6. Step 6: Final answer
   x = 63,730.58