Finding the Fourth Proportional to 21,060.48, 31,589.76 and 7,019.52

Step by Step Solution

1. Step 1: Write the proportion equation
   21,060.48 : 31,589.76 = 7,019.52 : x
2. Step 2: Convert to fraction form
   21,060.48/31,589.76 = 7,019.52/x
3. Step 3: Cross multiply
   21,060.48x = 31,589.76 × 7,019.52
4. Step 4: Simplify right side
   21,060.48x = 221,744,952.12
5. Step 5: Solve for x
   x = 221,744,952.12/21,060.48
6. Step 6: Final answer
   x = 10,528.96