Finding the Fourth Proportional to 16,111.35, 22,235.18 and 9,396.45

Step by Step Solution

1. Step 1: Write the proportion equation
   16,111.35 : 22,235.18 = 9,396.45 : x
2. Step 2: Convert to fraction form
   16,111.35/22,235.18 = 9,396.45/x
3. Step 3: Cross multiply
   16,111.35x = 22,235.18 × 9,396.45
4. Step 4: Simplify right side
   16,111.35x = 208,931,710.13
5. Step 5: Solve for x
   x = 208,931,710.13/16,111.35
6. Step 6: Final answer
   x = 12,967.98