Finding the Fourth Proportional to 12,093.72, 16,699.50 and 9,104.40

Step by Step Solution

1. Step 1: Write the proportion equation
   12,093.72 : 16,699.50 = 9,104.40 : x
2. Step 2: Convert to fraction form
   12,093.72/16,699.50 = 9,104.40/x
3. Step 3: Cross multiply
   12,093.72x = 16,699.50 × 9,104.40
4. Step 4: Simplify right side
   12,093.72x = 152,038,927.80
5. Step 5: Solve for x
   x = 152,038,927.80/12,093.72
6. Step 6: Final answer
   x = 12,571.73