Finding the Fourth Proportional to 21,889.81, 32,839.33 and 7,097.57

Step by Step Solution

1. Step 1: Write the proportion equation
   21,889.81 : 32,839.33 = 7,097.57 : x
2. Step 2: Convert to fraction form
   21,889.81/32,839.33 = 7,097.57/x
3. Step 3: Cross multiply
   21,889.81x = 32,839.33 × 7,097.57
4. Step 4: Simplify right side
   21,889.81x = 233,079,407.94
5. Step 5: Solve for x
   x = 233,079,407.94/21,889.81
6. Step 6: Final answer
   x = 10,647.85