Finding the Fourth Proportional to 15,339.83, 21,168.69 and 8,533.82

Step by Step Solution

1. Step 1: Write the proportion equation
   15,339.83 : 21,168.69 = 8,533.82 : x
2. Step 2: Convert to fraction form
   15,339.83/21,168.69 = 8,533.82/x
3. Step 3: Cross multiply
   15,339.83x = 21,168.69 × 8,533.82
4. Step 4: Simplify right side
   15,339.83x = 180,649,747.43
5. Step 5: Solve for x
   x = 180,649,747.43/15,339.83
6. Step 6: Final answer
   x = 11,776.52