Finding the Fourth Proportional to 7,648.98, 10,545.21 and 7,483.38

Step by Step Solution

1. Step 1: Write the proportion equation
   7,648.98 : 10,545.21 = 7,483.38 : x
2. Step 2: Convert to fraction form
   7,648.98/10,545.21 = 7,483.38/x
3. Step 3: Cross multiply
   7,648.98x = 10,545.21 × 7,483.38
4. Step 4: Simplify right side
   7,648.98x = 78,913,813.61
5. Step 5: Solve for x
   x = 78,913,813.61/7,648.98
6. Step 6: Final answer
   x = 10,316.91