Finding the Fourth Proportional to 11,603.25, 16,016.13 and 7,411.50

Step by Step Solution

1. Step 1: Write the proportion equation
   11,603.25 : 16,016.13 = 7,411.50 : x
2. Step 2: Convert to fraction form
   11,603.25/16,016.13 = 7,411.50/x
3. Step 3: Cross multiply
   11,603.25x = 16,016.13 × 7,411.50
4. Step 4: Simplify right side
   11,603.25x = 118,703,547.50
5. Step 5: Solve for x
   x = 118,703,547.50/11,603.25
6. Step 6: Final answer
   x = 10,230.20