Finding the Fourth Proportional to 21,152.52, 31,706.46 and 7,099.23

Step by Step Solution

1. Step 1: Write the proportion equation
   21,152.52 : 31,706.46 = 7,099.23 : x
2. Step 2: Convert to fraction form
   21,152.52/31,706.46 = 7,099.23/x
3. Step 3: Cross multiply
   21,152.52x = 31,706.46 × 7,099.23
4. Step 4: Simplify right side
   21,152.52x = 225,091,452.03
5. Step 5: Solve for x
   x = 225,091,452.03/21,152.52
6. Step 6: Final answer
   x = 10,641.35