Finding the Fourth Proportional to 21,889.50, 32,839.04 and 7,099.91

Step by Step Solution

1. Step 1: Write the proportion equation
   21,889.50 : 32,839.04 = 7,099.91 : x
2. Step 2: Convert to fraction form
   21,889.50/32,839.04 = 7,099.91/x
3. Step 3: Cross multiply
   21,889.50x = 32,839.04 × 7,099.91
4. Step 4: Simplify right side
   21,889.50x = 233,154,328.33
5. Step 5: Solve for x
   x = 233,154,328.33/21,889.50
6. Step 6: Final answer
   x = 10,651.42