Finding the Fourth Proportional to 7,010.56, 10,518.24 and 3,117.68

Step by Step Solution

1. Step 1: Write the proportion equation
   7,010.56 : 10,518.24 = 3,117.68 : x
2. Step 2: Convert to fraction form
   7,010.56/10,518.24 = 3,117.68/x
3. Step 3: Cross multiply
   7,010.56x = 10,518.24 × 3,117.68
4. Step 4: Simplify right side
   7,010.56x = 32,792,506.48
5. Step 5: Solve for x
   x = 32,792,506.48/7,010.56
6. Step 6: Final answer
   x = 4,677.59