Finding the Fourth Proportional to 9,545.42, 13,172.78 and 5,511.96

Step by Step Solution

1. Step 1: Write the proportion equation
   9,545.42 : 13,172.78 = 5,511.96 : x
2. Step 2: Convert to fraction form
   9,545.42/13,172.78 = 5,511.96/x
3. Step 3: Cross multiply
   9,545.42x = 13,172.78 × 5,511.96
4. Step 4: Simplify right side
   9,545.42x = 72,607,850.23
5. Step 5: Solve for x
   x = 72,607,850.23/9,545.42
6. Step 6: Final answer
   x = 7,606.56