Finding the Fourth Proportional to 21,396.27, 32,097.32 and 8,913.37

Step by Step Solution

1. Step 1: Write the proportion equation
   21,396.27 : 32,097.32 = 8,913.37 : x
2. Step 2: Convert to fraction form
   21,396.27/32,097.32 = 8,913.37/x
3. Step 3: Cross multiply
   21,396.27x = 32,097.32 × 8,913.37
4. Step 4: Simplify right side
   21,396.27x = 286,095,275.52
5. Step 5: Solve for x
   x = 286,095,275.52/21,396.27
6. Step 6: Final answer
   x = 13,371.27