Finding the Fourth Proportional to 10,962.42, 16,442.21 and 4,388.67

Step by Step Solution

1. Step 1: Write the proportion equation
   10,962.42 : 16,442.21 = 4,388.67 : x
2. Step 2: Convert to fraction form
   10,962.42/16,442.21 = 4,388.67/x
3. Step 3: Cross multiply
   10,962.42x = 16,442.21 × 4,388.67
4. Step 4: Simplify right side
   10,962.42x = 72,159,411.82
5. Step 5: Solve for x
   x = 72,159,411.82/10,962.42
6. Step 6: Final answer
   x = 6,582.43