Finding the Fourth Proportional to 21,973, 30,322.76 and 12,541.36

Step by Step Solution

1. Step 1: Write the proportion equation
   21,973 : 30,322.76 = 12,541.36 : x
2. Step 2: Convert to fraction form
   21,973/30,322.76 = 12,541.36/x
3. Step 3: Cross multiply
   21,973x = 30,322.76 × 12,541.36
4. Step 4: Simplify right side
   21,973x = 380,288,649.35
5. Step 5: Solve for x
   x = 380,288,649.35/21,973
6. Step 6: Final answer
   x = 17,307.09