Finding the Fourth Proportional to 11,161.98, 15,404.76 and 7,132.50

Step by Step Solution

1. Step 1: Write the proportion equation
   11,161.98 : 15,404.76 = 7,132.50 : x
2. Step 2: Convert to fraction form
   11,161.98/15,404.76 = 7,132.50/x
3. Step 3: Cross multiply
   11,161.98x = 15,404.76 × 7,132.50
4. Step 4: Simplify right side
   11,161.98x = 109,874,450.70
5. Step 5: Solve for x
   x = 109,874,450.70/11,161.98
6. Step 6: Final answer
   x = 9,843.63