Finding the Fourth Proportional to 7,016.49, 9,678.56 and 5,125.76

Step by Step Solution

1. Step 1: Write the proportion equation
   7,016.49 : 9,678.56 = 5,125.76 : x
2. Step 2: Convert to fraction form
   7,016.49/9,678.56 = 5,125.76/x
3. Step 3: Cross multiply
   7,016.49x = 9,678.56 × 5,125.76
4. Step 4: Simplify right side
   7,016.49x = 49,609,974.27
5. Step 5: Solve for x
   x = 49,609,974.27/7,016.49
6. Step 6: Final answer
   x = 7,070.48