Finding the Fourth Proportional to 21,804.05, 30,090.52 and 12,373.49

Step by Step Solution

1. Step 1: Write the proportion equation
   21,804.05 : 30,090.52 = 12,373.49 : x
2. Step 2: Convert to fraction form
   21,804.05/30,090.52 = 12,373.49/x
3. Step 3: Cross multiply
   21,804.05x = 30,090.52 × 12,373.49
4. Step 4: Simplify right side
   21,804.05x = 372,324,839.01
5. Step 5: Solve for x
   x = 372,324,839.01/21,804.05
6. Step 6: Final answer
   x = 17,075.95