Finding the Fourth Proportional to 13,049.41, 19,556.80 and 7,111.06

Step by Step Solution

1. Step 1: Write the proportion equation
   13,049.41 : 19,556.80 = 7,111.06 : x
2. Step 2: Convert to fraction form
   13,049.41/19,556.80 = 7,111.06/x
3. Step 3: Cross multiply
   13,049.41x = 19,556.80 × 7,111.06
4. Step 4: Simplify right side
   13,049.41x = 139,069,578.21
5. Step 5: Solve for x
   x = 139,069,578.21/13,049.41
6. Step 6: Final answer
   x = 10,657.15