Finding the Fourth Proportional to 21,868.01, 32,798.50 and 7,825.42

Step by Step Solution

1. Step 1: Write the proportion equation
   21,868.01 : 32,798.50 = 7,825.42 : x
2. Step 2: Convert to fraction form
   21,868.01/32,798.50 = 7,825.42/x
3. Step 3: Cross multiply
   21,868.01x = 32,798.50 × 7,825.42
4. Step 4: Simplify right side
   21,868.01x = 256,662,059.30
5. Step 5: Solve for x
   x = 256,662,059.30/21,868.01
6. Step 6: Final answer
   x = 11,736.87