Finding the Fourth Proportional to 21,809.61, 32,711.31 and 7,019.82

Step by Step Solution

1. Step 1: Write the proportion equation
   21,809.61 : 32,711.31 = 7,019.82 : x
2. Step 2: Convert to fraction form
   21,809.61/32,711.31 = 7,019.82/x
3. Step 3: Cross multiply
   21,809.61x = 32,711.31 × 7,019.82
4. Step 4: Simplify right side
   21,809.61x = 229,627,508.16
5. Step 5: Solve for x
   x = 229,627,508.16/21,809.61
6. Step 6: Final answer
   x = 10,528.73