Finding the Fourth Proportional to 11,077.98, 15,292.71 and 9,559.50

Step by Step Solution

1. Step 1: Write the proportion equation
   11,077.98 : 15,292.71 = 9,559.50 : x
2. Step 2: Convert to fraction form
   11,077.98/15,292.71 = 9,559.50/x
3. Step 3: Cross multiply
   11,077.98x = 15,292.71 × 9,559.50
4. Step 4: Simplify right side
   11,077.98x = 146,190,661.25
5. Step 5: Solve for x
   x = 146,190,661.25/11,077.98
6. Step 6: Final answer
   x = 13,196.51