Finding the Fourth Proportional to 12,389.62, 17,098.86 and 7,083.43

Step by Step Solution

1. Step 1: Write the proportion equation
   12,389.62 : 17,098.86 = 7,083.43 : x
2. Step 2: Convert to fraction form
   12,389.62/17,098.86 = 7,083.43/x
3. Step 3: Cross multiply
   12,389.62x = 17,098.86 × 7,083.43
4. Step 4: Simplify right side
   12,389.62x = 121,118,577.89
5. Step 5: Solve for x
   x = 121,118,577.89/12,389.62
6. Step 6: Final answer
   x = 9,775.81