Finding the Fourth Proportional to 22,322.01, 30,804.12 and 12,890.37

Step by Step Solution

1. Step 1: Write the proportion equation
   22,322.01 : 30,804.12 = 12,890.37 : x
2. Step 2: Convert to fraction form
   22,322.01/30,804.12 = 12,890.37/x
3. Step 3: Cross multiply
   22,322.01x = 30,804.12 × 12,890.37
4. Step 4: Simplify right side
   22,322.01x = 397,076,504.32
5. Step 5: Solve for x
   x = 397,076,504.32/22,322.01
6. Step 6: Final answer
   x = 17,788.56