Finding the Fourth Proportional to 21,804.04, 30,088.74 and 12,372.04

Step by Step Solution

1. Step 1: Write the proportion equation
   21,804.04 : 30,088.74 = 12,372.04 : x
2. Step 2: Convert to fraction form
   21,804.04/30,088.74 = 12,372.04/x
3. Step 3: Cross multiply
   21,804.04x = 30,088.74 × 12,372.04
4. Step 4: Simplify right side
   21,804.04x = 372,259,094.83
5. Step 5: Solve for x
   x = 372,259,094.83/21,804.04
6. Step 6: Final answer
   x = 17,072.94