Finding the Fourth Proportional to 8,987.04, 12,401.98 and 5,008.60

Step by Step Solution

1. Step 1: Write the proportion equation
   8,987.04 : 12,401.98 = 5,008.60 : x
2. Step 2: Convert to fraction form
   8,987.04/12,401.98 = 5,008.60/x
3. Step 3: Cross multiply
   8,987.04x = 12,401.98 × 5,008.60
4. Step 4: Simplify right side
   8,987.04x = 62,116,557.03
5. Step 5: Solve for x
   x = 62,116,557.03/8,987.04
6. Step 6: Final answer
   x = 6,911.79