Finding the Fourth Proportional to 5,016.31, 7,520.78 and 3,069.88

Step by Step Solution

1. Step 1: Write the proportion equation
   5,016.31 : 7,520.78 = 3,069.88 : x
2. Step 2: Convert to fraction form
   5,016.31/7,520.78 = 3,069.88/x
3. Step 3: Cross multiply
   5,016.31x = 7,520.78 × 3,069.88
4. Step 4: Simplify right side
   5,016.31x = 23,087,880.98
5. Step 5: Solve for x
   x = 23,087,880.98/5,016.31
6. Step 6: Final answer
   x = 4,602.56