Finding the Fourth Proportional to 21,891.31, 32,841.58 and 7,099.07

Step by Step Solution

1. Step 1: Write the proportion equation
   21,891.31 : 32,841.58 = 7,099.07 : x
2. Step 2: Convert to fraction form
   21,891.31/32,841.58 = 7,099.07/x
3. Step 3: Cross multiply
   21,891.31x = 32,841.58 × 7,099.07
4. Step 4: Simplify right side
   21,891.31x = 233,144,675.33
5. Step 5: Solve for x
   x = 233,144,675.33/21,891.31
6. Step 6: Final answer
   x = 10,650.10