Finding the Fourth Proportional to 11,089.32, 16,638.30 and 4,929

Step by Step Solution

1. Step 1: Write the proportion equation
   11,089.32 : 16,638.30 = 4,929 : x
2. Step 2: Convert to fraction form
   11,089.32/16,638.30 = 4,929/x
3. Step 3: Cross multiply
   11,089.32x = 16,638.30 × 4,929
4. Step 4: Simplify right side
   11,089.32x = 82,010,180.70
5. Step 5: Solve for x
   x = 82,010,180.70/11,089.32
6. Step 6: Final answer
   x = 7,395.42