Finding the Fourth Proportional to 16,427.92, 22,670.82 and 9,355

Step by Step Solution

1. Step 1: Write the proportion equation
   16,427.92 : 22,670.82 = 9,355 : x
2. Step 2: Convert to fraction form
   16,427.92/22,670.82 = 9,355/x
3. Step 3: Cross multiply
   16,427.92x = 22,670.82 × 9,355
4. Step 4: Simplify right side
   16,427.92x = 212,085,521.10
5. Step 5: Solve for x
   x = 212,085,521.10/16,427.92
6. Step 6: Final answer
   x = 12,910.07