Finding the Fourth Proportional to 16,188.48, 22,339.96 and 9,018.32

Step by Step Solution

1. Step 1: Write the proportion equation
   16,188.48 : 22,339.96 = 9,018.32 : x
2. Step 2: Convert to fraction form
   16,188.48/22,339.96 = 9,018.32/x
3. Step 3: Cross multiply
   16,188.48x = 22,339.96 × 9,018.32
4. Step 4: Simplify right side
   16,188.48x = 201,468,773.82
5. Step 5: Solve for x
   x = 201,468,773.82/16,188.48
6. Step 6: Final answer
   x = 12,445.19