Finding the Fourth Proportional to 21,707.95, 32,566.71 and 9,238.56

Step by Step Solution

1. Step 1: Write the proportion equation
   21,707.95 : 32,566.71 = 9,238.56 : x
2. Step 2: Convert to fraction form
   21,707.95/32,566.71 = 9,238.56/x
3. Step 3: Cross multiply
   21,707.95x = 32,566.71 × 9,238.56
4. Step 4: Simplify right side
   21,707.95x = 300,869,504.34
5. Step 5: Solve for x
   x = 300,869,504.34/21,707.95
6. Step 6: Final answer
   x = 13,859.88