Finding the Fourth Proportional to 12,442.37, 17,146.62 and 7,958.31

Step by Step Solution

1. Step 1: Write the proportion equation
   12,442.37 : 17,146.62 = 7,958.31 : x
2. Step 2: Convert to fraction form
   12,442.37/17,146.62 = 7,958.31/x
3. Step 3: Cross multiply
   12,442.37x = 17,146.62 × 7,958.31
4. Step 4: Simplify right side
   12,442.37x = 136,458,117.41
5. Step 5: Solve for x
   x = 136,458,117.41/12,442.37
6. Step 6: Final answer
   x = 10,967.21