Finding the Fourth Proportional to 8,987.18, 12,401.94 and 5,008.22

Step by Step Solution

1. Step 1: Write the proportion equation
   8,987.18 : 12,401.94 = 5,008.22 : x
2. Step 2: Convert to fraction form
   8,987.18/12,401.94 = 5,008.22/x
3. Step 3: Cross multiply
   8,987.18x = 12,401.94 × 5,008.22
4. Step 4: Simplify right side
   8,987.18x = 62,111,643.95
5. Step 5: Solve for x
   x = 62,111,643.95/8,987.18
6. Step 6: Final answer
   x = 6,911.14