Finding the Fourth Proportional to 12,784.37, 17,647.22 and 9,453.98

Step by Step Solution

1. Step 1: Write the proportion equation
   12,784.37 : 17,647.22 = 9,453.98 : x
2. Step 2: Convert to fraction form
   12,784.37/17,647.22 = 9,453.98/x
3. Step 3: Cross multiply
   12,784.37x = 17,647.22 × 9,453.98
4. Step 4: Simplify right side
   12,784.37x = 166,836,532.69
5. Step 5: Solve for x
   x = 166,836,532.69/12,784.37
6. Step 6: Final answer
   x = 13,050.04