Finding the Fourth Proportional to 9,488.72, 13,093.44 and 5,509.05

Step by Step Solution

1. Step 1: Write the proportion equation
   9,488.72 : 13,093.44 = 5,509.05 : x
2. Step 2: Convert to fraction form
   9,488.72/13,093.44 = 5,509.05/x
3. Step 3: Cross multiply
   9,488.72x = 13,093.44 × 5,509.05
4. Step 4: Simplify right side
   9,488.72x = 72,132,420.82
5. Step 5: Solve for x
   x = 72,132,420.82/9,488.72
6. Step 6: Final answer
   x = 7,601.91