Finding the Fourth Proportional to 11,615.31, 17,335.18 and 10,494.30

Step by Step Solution

1. Step 1: Write the proportion equation
   11,615.31 : 17,335.18 = 10,494.30 : x
2. Step 2: Convert to fraction form
   11,615.31/17,335.18 = 10,494.30/x
3. Step 3: Cross multiply
   11,615.31x = 17,335.18 × 10,494.30
4. Step 4: Simplify right side
   11,615.31x = 181,920,592.59
5. Step 5: Solve for x
   x = 181,920,592.59/11,615.31
6. Step 6: Final answer
   x = 15,662.14