Finding the Fourth Proportional to 8,710.50, 12,019.68 and 5,174.58

Step by Step Solution

1. Step 1: Write the proportion equation
   8,710.50 : 12,019.68 = 5,174.58 : x
2. Step 2: Convert to fraction form
   8,710.50/12,019.68 = 5,174.58/x
3. Step 3: Cross multiply
   8,710.50x = 12,019.68 × 5,174.58
4. Step 4: Simplify right side
   8,710.50x = 62,196,795.73
5. Step 5: Solve for x
   x = 62,196,795.73/8,710.50
6. Step 6: Final answer
   x = 7,140.44