Finding the Fourth Proportional to 13,004.91, 17,946.34 and 7,339.80

Step by Step Solution

1. Step 1: Write the proportion equation
   13,004.91 : 17,946.34 = 7,339.80 : x
2. Step 2: Convert to fraction form
   13,004.91/17,946.34 = 7,339.80/x
3. Step 3: Cross multiply
   13,004.91x = 17,946.34 × 7,339.80
4. Step 4: Simplify right side
   13,004.91x = 131,722,546.33
5. Step 5: Solve for x
   x = 131,722,546.33/13,004.91
6. Step 6: Final answer
   x = 10,128.68