Finding the Fourth Proportional to 82,485.07, 123,506.17 and 42,959.15

Step by Step Solution

1. Step 1: Write the proportion equation
   82,485.07 : 123,506.17 = 42,959.15 : x
2. Step 2: Convert to fraction form
   82,485.07/123,506.17 = 42,959.15/x
3. Step 3: Cross multiply
   82,485.07x = 123,506.17 × 42,959.15
4. Step 4: Simplify right side
   82,485.07x = 5,305,720,082.96
5. Step 5: Solve for x
   x = 5,305,720,082.96/82,485.07
6. Step 6: Final answer
   x = 64,323.40