Finding the Fourth Proportional to 11,291.23, 15,577.72 and 7,314.54

Step by Step Solution

1. Step 1: Write the proportion equation
   11,291.23 : 15,577.72 = 7,314.54 : x
2. Step 2: Convert to fraction form
   11,291.23/15,577.72 = 7,314.54/x
3. Step 3: Cross multiply
   11,291.23x = 15,577.72 × 7,314.54
4. Step 4: Simplify right side
   11,291.23x = 113,943,856.05
5. Step 5: Solve for x
   x = 113,943,856.05/11,291.23
6. Step 6: Final answer
   x = 10,091.36