Finding the Fourth Proportional to 82,267.05, 123,371.78 and 42,811.05

Step by Step Solution

1. Step 1: Write the proportion equation
   82,267.05 : 123,371.78 = 42,811.05 : x
2. Step 2: Convert to fraction form
   82,267.05/123,371.78 = 42,811.05/x
3. Step 3: Cross multiply
   82,267.05x = 123,371.78 × 42,811.05
4. Step 4: Simplify right side
   82,267.05x = 5,281,675,228.11
5. Step 5: Solve for x
   x = 5,281,675,228.11/82,267.05
6. Step 6: Final answer
   x = 64,201.59