Finding the Fourth Proportional to 14,835.92, 20,478.72 and 9,175

Step by Step Solution

1. Step 1: Write the proportion equation
   14,835.92 : 20,478.72 = 9,175 : x
2. Step 2: Convert to fraction form
   14,835.92/20,478.72 = 9,175/x
3. Step 3: Cross multiply
   14,835.92x = 20,478.72 × 9,175
4. Step 4: Simplify right side
   14,835.92x = 187,892,256
5. Step 5: Solve for x
   x = 187,892,256/14,835.92
6. Step 6: Final answer
   x = 12,664.69