Finding the Fourth Proportional to 20,610.82, 30,915.69 and 5,820.76

Step by Step Solution

1. Step 1: Write the proportion equation
   20,610.82 : 30,915.69 = 5,820.76 : x
2. Step 2: Convert to fraction form
   20,610.82/30,915.69 = 5,820.76/x
3. Step 3: Cross multiply
   20,610.82x = 30,915.69 × 5,820.76
4. Step 4: Simplify right side
   20,610.82x = 179,952,811.72
5. Step 5: Solve for x
   x = 179,952,811.72/20,610.82
6. Step 6: Final answer
   x = 8,730.99