Finding the Fourth Proportional to 12,389.41, 17,097.90 and 7,084.22

Step by Step Solution

1. Step 1: Write the proportion equation
   12,389.41 : 17,097.90 = 7,084.22 : x
2. Step 2: Convert to fraction form
   12,389.41/17,097.90 = 7,084.22/x
3. Step 3: Cross multiply
   12,389.41x = 17,097.90 × 7,084.22
4. Step 4: Simplify right side
   12,389.41x = 121,125,249.72
5. Step 5: Solve for x
   x = 121,125,249.72/12,389.41
6. Step 6: Final answer
   x = 9,776.52