Finding the Fourth Proportional to 21,972.33, 32,944.52 and 18,641.73

Step by Step Solution

1. Step 1: Write the proportion equation
   21,972.33 : 32,944.52 = 18,641.73 : x
2. Step 2: Convert to fraction form
   21,972.33/32,944.52 = 18,641.73/x
3. Step 3: Cross multiply
   21,972.33x = 32,944.52 × 18,641.73
4. Step 4: Simplify right side
   21,972.33x = 614,142,846.82
5. Step 5: Solve for x
   x = 614,142,846.82/21,972.33
6. Step 6: Final answer
   x = 27,950.74