Finding the Fourth Proportional to 13,929.89, 19,223.14 and 7,556.47

Step by Step Solution

1. Step 1: Write the proportion equation
   13,929.89 : 19,223.14 = 7,556.47 : x
2. Step 2: Convert to fraction form
   13,929.89/19,223.14 = 7,556.47/x
3. Step 3: Cross multiply
   13,929.89x = 19,223.14 × 7,556.47
4. Step 4: Simplify right side
   13,929.89x = 145,259,080.72
5. Step 5: Solve for x
   x = 145,259,080.72/13,929.89
6. Step 6: Final answer
   x = 10,427.87