Finding the Fourth Proportional to 21,127.50, 31,695.03 and 7,092.10

Step by Step Solution

1. Step 1: Write the proportion equation
   21,127.50 : 31,695.03 = 7,092.10 : x
2. Step 2: Convert to fraction form
   21,127.50/31,695.03 = 7,092.10/x
3. Step 3: Cross multiply
   21,127.50x = 31,695.03 × 7,092.10
4. Step 4: Simplify right side
   21,127.50x = 224,784,335.29
5. Step 5: Solve for x
   x = 224,784,335.29/21,127.50
6. Step 6: Final answer
   x = 10,639.42