Finding the Fourth Proportional to 12,388.62, 17,097.48 and 7,082.43

Step by Step Solution

1. Step 1: Write the proportion equation
   12,388.62 : 17,097.48 = 7,082.43 : x
2. Step 2: Convert to fraction form
   12,388.62/17,097.48 = 7,082.43/x
3. Step 3: Cross multiply
   12,388.62x = 17,097.48 × 7,082.43
4. Step 4: Simplify right side
   12,388.62x = 121,091,705.28
5. Step 5: Solve for x
   x = 121,091,705.28/12,388.62
6. Step 6: Final answer
   x = 9,774.43