Finding the Fourth Proportional to 21,046.91, 31,563.45 and 7,003.08

Step by Step Solution

1. Step 1: Write the proportion equation
   21,046.91 : 31,563.45 = 7,003.08 : x
2. Step 2: Convert to fraction form
   21,046.91/31,563.45 = 7,003.08/x
3. Step 3: Cross multiply
   21,046.91x = 31,563.45 × 7,003.08
4. Step 4: Simplify right side
   21,046.91x = 221,041,365.43
5. Step 5: Solve for x
   x = 221,041,365.43/21,046.91
6. Step 6: Final answer
   x = 10,502.32