Finding the Fourth Proportional to 21,859.34, 32,791.92 and 7,064.66

Step by Step Solution

1. Step 1: Write the proportion equation
   21,859.34 : 32,791.92 = 7,064.66 : x
2. Step 2: Convert to fraction form
   21,859.34/32,791.92 = 7,064.66/x
3. Step 3: Cross multiply
   21,859.34x = 32,791.92 × 7,064.66
4. Step 4: Simplify right side
   21,859.34x = 231,663,765.55
5. Step 5: Solve for x
   x = 231,663,765.55/21,859.34
6. Step 6: Final answer
   x = 10,597.93