Finding the Fourth Proportional to 10,347.69, 15,442.01 and 9,240.46

Step by Step Solution

1. Step 1: Write the proportion equation
   10,347.69 : 15,442.01 = 9,240.46 : x
2. Step 2: Convert to fraction form
   10,347.69/15,442.01 = 9,240.46/x
3. Step 3: Cross multiply
   10,347.69x = 15,442.01 × 9,240.46
4. Step 4: Simplify right side
   10,347.69x = 142,691,275.72
5. Step 5: Solve for x
   x = 142,691,275.72/10,347.69
6. Step 6: Final answer
   x = 13,789.67