Finding the Fourth Proportional to 12,389.34, 17,097.81 and 7,084.16

Step by Step Solution

1. Step 1: Write the proportion equation
   12,389.34 : 17,097.81 = 7,084.16 : x
2. Step 2: Convert to fraction form
   12,389.34/17,097.81 = 7,084.16/x
3. Step 3: Cross multiply
   12,389.34x = 17,097.81 × 7,084.16
4. Step 4: Simplify right side
   12,389.34x = 121,123,536.20
5. Step 5: Solve for x
   x = 121,123,536.20/12,389.34
6. Step 6: Final answer
   x = 9,776.43