Finding the Fourth Proportional to 14,128.61, 19,500.17 and 9,348.65

Step by Step Solution

1. Step 1: Write the proportion equation
   14,128.61 : 19,500.17 = 9,348.65 : x
2. Step 2: Convert to fraction form
   14,128.61/19,500.17 = 9,348.65/x
3. Step 3: Cross multiply
   14,128.61x = 19,500.17 × 9,348.65
4. Step 4: Simplify right side
   14,128.61x = 182,300,120.03
5. Step 5: Solve for x
   x = 182,300,120.03/14,128.61
6. Step 6: Final answer
   x = 12,902.91