Finding the Fourth Proportional to 82,700.84, 123,995.11 and 42,074.50

Step by Step Solution

1. Step 1: Write the proportion equation
   82,700.84 : 123,995.11 = 42,074.50 : x
2. Step 2: Convert to fraction form
   82,700.84/123,995.11 = 42,074.50/x
3. Step 3: Cross multiply
   82,700.84x = 123,995.11 × 42,074.50
4. Step 4: Simplify right side
   82,700.84x = 5,217,032,255.70
5. Step 5: Solve for x
   x = 5,217,032,255.70/82,700.84
6. Step 6: Final answer
   x = 63,083.18