Finding the Fourth Proportional to 14,586.48, 21,978.18 and 12,046.32

Step by Step Solution

1. Step 1: Write the proportion equation
   14,586.48 : 21,978.18 = 12,046.32 : x
2. Step 2: Convert to fraction form
   14,586.48/21,978.18 = 12,046.32/x
3. Step 3: Cross multiply
   14,586.48x = 21,978.18 × 12,046.32
4. Step 4: Simplify right side
   14,586.48x = 264,756,189.30
5. Step 5: Solve for x
   x = 264,756,189.30/14,586.48
6. Step 6: Final answer
   x = 18,150.79