Finding the Fourth Proportional to 21,131.07, 31,701.47 and 7,092.96

Step by Step Solution

1. Step 1: Write the proportion equation
   21,131.07 : 31,701.47 = 7,092.96 : x
2. Step 2: Convert to fraction form
   21,131.07/31,701.47 = 7,092.96/x
3. Step 3: Cross multiply
   21,131.07x = 31,701.47 × 7,092.96
4. Step 4: Simplify right side
   21,131.07x = 224,857,223.19
5. Step 5: Solve for x
   x = 224,857,223.19/21,131.07
6. Step 6: Final answer
   x = 10,641.07