Finding the Fourth Proportional to 8,986.02, 12,400.61 and 5,007.57

Step by Step Solution

1. Step 1: Write the proportion equation
   8,986.02 : 12,400.61 = 5,007.57 : x
2. Step 2: Convert to fraction form
   8,986.02/12,400.61 = 5,007.57/x
3. Step 3: Cross multiply
   8,986.02x = 12,400.61 × 5,007.57
4. Step 4: Simplify right side
   8,986.02x = 62,096,897.58
5. Step 5: Solve for x
   x = 62,096,897.58/8,986.02
6. Step 6: Final answer
   x = 6,910.39