Finding the Fourth Proportional to 21,400.58, 32,100.76 and 5,818.16

Step by Step Solution

1. Step 1: Write the proportion equation
   21,400.58 : 32,100.76 = 5,818.16 : x
2. Step 2: Convert to fraction form
   21,400.58/32,100.76 = 5,818.16/x
3. Step 3: Cross multiply
   21,400.58x = 32,100.76 × 5,818.16
4. Step 4: Simplify right side
   21,400.58x = 186,767,357.80
5. Step 5: Solve for x
   x = 186,767,357.80/21,400.58
6. Step 6: Final answer
   x = 8,727.21