Finding the Fourth Proportional to 13,287.50, 19,922.42 and 7,043.61

Step by Step Solution

1. Step 1: Write the proportion equation
   13,287.50 : 19,922.42 = 7,043.61 : x
2. Step 2: Convert to fraction form
   13,287.50/19,922.42 = 7,043.61/x
3. Step 3: Cross multiply
   13,287.50x = 19,922.42 × 7,043.61
4. Step 4: Simplify right side
   13,287.50x = 140,325,721.52
5. Step 5: Solve for x
   x = 140,325,721.52/13,287.50
6. Step 6: Final answer
   x = 10,560.74