Finding the Fourth Proportional to 11,498.31, 17,269.35 and 7,146.18

Step by Step Solution

1. Step 1: Write the proportion equation
   11,498.31 : 17,269.35 = 7,146.18 : x
2. Step 2: Convert to fraction form
   11,498.31/17,269.35 = 7,146.18/x
3. Step 3: Cross multiply
   11,498.31x = 17,269.35 × 7,146.18
4. Step 4: Simplify right side
   11,498.31x = 123,409,883.58
5. Step 5: Solve for x
   x = 123,409,883.58/11,498.31
6. Step 6: Final answer
   x = 10,732.87