Finding the Fourth Proportional to 8,987.33, 12,402.63 and 5,008.30

Step by Step Solution

1. Step 1: Write the proportion equation
   8,987.33 : 12,402.63 = 5,008.30 : x
2. Step 2: Convert to fraction form
   8,987.33/12,402.63 = 5,008.30/x
3. Step 3: Cross multiply
   8,987.33x = 12,402.63 × 5,008.30
4. Step 4: Simplify right side
   8,987.33x = 62,116,107.33
5. Step 5: Solve for x
   x = 62,116,107.33/8,987.33
6. Step 6: Final answer
   x = 6,911.52