Finding the Fourth Proportional to 21,074.56, 31,601.10 and 7,029.56

Step by Step Solution

1. Step 1: Write the proportion equation
   21,074.56 : 31,601.10 = 7,029.56 : x
2. Step 2: Convert to fraction form
   21,074.56/31,601.10 = 7,029.56/x
3. Step 3: Cross multiply
   21,074.56x = 31,601.10 × 7,029.56
4. Step 4: Simplify right side
   21,074.56x = 222,141,828.52
5. Step 5: Solve for x
   x = 222,141,828.52/21,074.56
6. Step 6: Final answer
   x = 10,540.76