Finding the Fourth Proportional to 10,508.61, 15,766.16 and 4,961.73

Step by Step Solution

1. Step 1: Write the proportion equation
   10,508.61 : 15,766.16 = 4,961.73 : x
2. Step 2: Convert to fraction form
   10,508.61/15,766.16 = 4,961.73/x
3. Step 3: Cross multiply
   10,508.61x = 15,766.16 × 4,961.73
4. Step 4: Simplify right side
   10,508.61x = 78,227,404.25
5. Step 5: Solve for x
   x = 78,227,404.25/10,508.61
6. Step 6: Final answer
   x = 7,444.12