Finding the Fourth Proportional to 13,053.24, 19,560.42 and 7,211.52

Step by Step Solution

1. Step 1: Write the proportion equation
   13,053.24 : 19,560.42 = 7,211.52 : x
2. Step 2: Convert to fraction form
   13,053.24/19,560.42 = 7,211.52/x
3. Step 3: Cross multiply
   13,053.24x = 19,560.42 × 7,211.52
4. Step 4: Simplify right side
   13,053.24x = 141,060,360.04
5. Step 5: Solve for x
   x = 141,060,360.04/13,053.24
6. Step 6: Final answer
   x = 10,806.54