Finding the Fourth Proportional to 21,069.72, 31,593.96 and 7,024.86

Step by Step Solution

1. Step 1: Write the proportion equation
   21,069.72 : 31,593.96 = 7,024.86 : x
2. Step 2: Convert to fraction form
   21,069.72/31,593.96 = 7,024.86/x
3. Step 3: Cross multiply
   21,069.72x = 31,593.96 × 7,024.86
4. Step 4: Simplify right side
   21,069.72x = 221,943,145.85
5. Step 5: Solve for x
   x = 221,943,145.85/21,069.72
6. Step 6: Final answer
   x = 10,533.75