Finding the Fourth Proportional to 82,017.74, 122,982.87 and 42,476.78

Step by Step Solution

1. Step 1: Write the proportion equation
   82,017.74 : 122,982.87 = 42,476.78 : x
2. Step 2: Convert to fraction form
   82,017.74/122,982.87 = 42,476.78/x
3. Step 3: Cross multiply
   82,017.74x = 122,982.87 × 42,476.78
4. Step 4: Simplify right side
   82,017.74x = 5,223,916,312.76
5. Step 5: Solve for x
   x = 5,223,916,312.76/82,017.74
6. Step 6: Final answer
   x = 63,692.52