Finding the Fourth Proportional to 21,406.56, 32,104.16 and 5,820.56

Step by Step Solution

1. Step 1: Write the proportion equation
   21,406.56 : 32,104.16 = 5,820.56 : x
2. Step 2: Convert to fraction form
   21,406.56/32,104.16 = 5,820.56/x
3. Step 3: Cross multiply
   21,406.56x = 32,104.16 × 5,820.56
4. Step 4: Simplify right side
   21,406.56x = 186,864,189.53
5. Step 5: Solve for x
   x = 186,864,189.53/21,406.56
6. Step 6: Final answer
   x = 8,729.30