Finding the Fourth Proportional to 21,073.25, 31,611.77 and 5,491.01

Step by Step Solution

1. Step 1: Write the proportion equation
   21,073.25 : 31,611.77 = 5,491.01 : x
2. Step 2: Convert to fraction form
   21,073.25/31,611.77 = 5,491.01/x
3. Step 3: Cross multiply
   21,073.25x = 31,611.77 × 5,491.01
4. Step 4: Simplify right side
   21,073.25x = 173,580,359.67
5. Step 5: Solve for x
   x = 173,580,359.67/21,073.25
6. Step 6: Final answer
   x = 8,237.00