Finding the Fourth Proportional to 82,224.10, 123,340.20 and 42,858.10

Step by Step Solution

1. Step 1: Write the proportion equation
   82,224.10 : 123,340.20 = 42,858.10 : x
2. Step 2: Convert to fraction form
   82,224.10/123,340.20 = 42,858.10/x
3. Step 3: Cross multiply
   82,224.10x = 123,340.20 × 42,858.10
4. Step 4: Simplify right side
   82,224.10x = 5,286,126,625.62
5. Step 5: Solve for x
   x = 5,286,126,625.62/82,224.10
6. Step 6: Final answer
   x = 64,289.26