Finding the Fourth Proportional to 11,597.31, 17,374.10 and 8,987.49

Step by Step Solution

1. Step 1: Write the proportion equation
   11,597.31 : 17,374.10 = 8,987.49 : x
2. Step 2: Convert to fraction form
   11,597.31/17,374.10 = 8,987.49/x
3. Step 3: Cross multiply
   11,597.31x = 17,374.10 × 8,987.49
4. Step 4: Simplify right side
   11,597.31x = 156,149,505.07
5. Step 5: Solve for x
   x = 156,149,505.07/11,597.31
6. Step 6: Final answer
   x = 13,464.29