Finding the Fourth Proportional to 12,388.78, 17,097.03 and 7,083.59

Step by Step Solution

1. Step 1: Write the proportion equation
   12,388.78 : 17,097.03 = 7,083.59 : x
2. Step 2: Convert to fraction form
   12,388.78/17,097.03 = 7,083.59/x
3. Step 3: Cross multiply
   12,388.78x = 17,097.03 × 7,083.59
4. Step 4: Simplify right side
   12,388.78x = 121,108,393.48
5. Step 5: Solve for x
   x = 121,108,393.48/12,388.78
6. Step 6: Final answer
   x = 9,775.65