Finding the Fourth Proportional to 14,159.47, 19,540.30 and 7,786.33

Step by Step Solution

1. Step 1: Write the proportion equation
   14,159.47 : 19,540.30 = 7,786.33 : x
2. Step 2: Convert to fraction form
   14,159.47/19,540.30 = 7,786.33/x
3. Step 3: Cross multiply
   14,159.47x = 19,540.30 × 7,786.33
4. Step 4: Simplify right side
   14,159.47x = 152,147,224.10
5. Step 5: Solve for x
   x = 152,147,224.10/14,159.47
6. Step 6: Final answer
   x = 10,745.26