Finding the Fourth Proportional to 13,222.40, 19,846.56 and 10,073.12

Step by Step Solution

1. Step 1: Write the proportion equation
   13,222.40 : 19,846.56 = 10,073.12 : x
2. Step 2: Convert to fraction form
   13,222.40/19,846.56 = 10,073.12/x
3. Step 3: Cross multiply
   13,222.40x = 19,846.56 × 10,073.12
4. Step 4: Simplify right side
   13,222.40x = 199,916,780.47
5. Step 5: Solve for x
   x = 199,916,780.47/13,222.40
6. Step 6: Final answer
   x = 15,119.55