Finding the Fourth Proportional to 5,061.82, 6,985.77 and 3,072.88

Step by Step Solution

1. Step 1: Write the proportion equation
   5,061.82 : 6,985.77 = 3,072.88 : x
2. Step 2: Convert to fraction form
   5,061.82/6,985.77 = 3,072.88/x
3. Step 3: Cross multiply
   5,061.82x = 6,985.77 × 3,072.88
4. Step 4: Simplify right side
   5,061.82x = 21,466,432.92
5. Step 5: Solve for x
   x = 21,466,432.92/5,061.82
6. Step 6: Final answer
   x = 4,240.85