Finding the Fourth Proportional to 21,400.45, 32,100.76 and 5,818.08

Step by Step Solution

1. Step 1: Write the proportion equation
   21,400.45 : 32,100.76 = 5,818.08 : x
2. Step 2: Convert to fraction form
   21,400.45/32,100.76 = 5,818.08/x
3. Step 3: Cross multiply
   21,400.45x = 32,100.76 × 5,818.08
4. Step 4: Simplify right side
   21,400.45x = 186,764,704.10
5. Step 5: Solve for x
   x = 186,764,704.10/21,400.45
6. Step 6: Final answer
   x = 8,727.14