Finding the Fourth Proportional to 21,402.76, 32,105.76 and 5,820.16

Step by Step Solution

1. Step 1: Write the proportion equation
   21,402.76 : 32,105.76 = 5,820.16 : x
2. Step 2: Convert to fraction form
   21,402.76/32,105.76 = 5,820.16/x
3. Step 3: Cross multiply
   21,402.76x = 32,105.76 × 5,820.16
4. Step 4: Simplify right side
   21,402.76x = 186,860,660.12
5. Step 5: Solve for x
   x = 186,860,660.12/21,402.76
6. Step 6: Final answer
   x = 8,730.68