Finding the Fourth Proportional to 21,858.24, 32,777.12 and 7,256

Step by Step Solution

1. Step 1: Write the proportion equation
   21,858.24 : 32,777.12 = 7,256 : x
2. Step 2: Convert to fraction form
   21,858.24/32,777.12 = 7,256/x
3. Step 3: Cross multiply
   21,858.24x = 32,777.12 × 7,256
4. Step 4: Simplify right side
   21,858.24x = 237,830,782.72
5. Step 5: Solve for x
   x = 237,830,782.72/21,858.24
6. Step 6: Final answer
   x = 10,880.60