Finding the Fourth Proportional to 21,107.52, 31,650.56 and 7,062.56

Step by Step Solution

1. Step 1: Write the proportion equation
   21,107.52 : 31,650.56 = 7,062.56 : x
2. Step 2: Convert to fraction form
   21,107.52/31,650.56 = 7,062.56/x
3. Step 3: Cross multiply
   21,107.52x = 31,650.56 × 7,062.56
4. Step 4: Simplify right side
   21,107.52x = 223,533,979.03
5. Step 5: Solve for x
   x = 223,533,979.03/21,107.52
6. Step 6: Final answer
   x = 10,590.25