Finding the Fourth Proportional to 12,442.88, 17,165.39 and 7,404.28

Step by Step Solution

1. Step 1: Write the proportion equation
   12,442.88 : 17,165.39 = 7,404.28 : x
2. Step 2: Convert to fraction form
   12,442.88/17,165.39 = 7,404.28/x
3. Step 3: Cross multiply
   12,442.88x = 17,165.39 × 7,404.28
4. Step 4: Simplify right side
   12,442.88x = 127,097,273.93
5. Step 5: Solve for x
   x = 127,097,273.93/12,442.88
6. Step 6: Final answer
   x = 10,214.46