Finding the Fourth Proportional to 11,962.64, 16,514.91 and 8,388.56

Step by Step Solution

1. Step 1: Write the proportion equation
   11,962.64 : 16,514.91 = 8,388.56 : x
2. Step 2: Convert to fraction form
   11,962.64/16,514.91 = 8,388.56/x
3. Step 3: Cross multiply
   11,962.64x = 16,514.91 × 8,388.56
4. Step 4: Simplify right side
   11,962.64x = 138,536,354.72
5. Step 5: Solve for x
   x = 138,536,354.72/11,962.64
6. Step 6: Final answer
   x = 11,580.75