Finding the Fourth Proportional to 22,111.56, 30,508.64 and 12,549.31

Step by Step Solution

1. Step 1: Write the proportion equation
   22,111.56 : 30,508.64 = 12,549.31 : x
2. Step 2: Convert to fraction form
   22,111.56/30,508.64 = 12,549.31/x
3. Step 3: Cross multiply
   22,111.56x = 30,508.64 × 12,549.31
4. Step 4: Simplify right side
   22,111.56x = 382,862,381.04
5. Step 5: Solve for x
   x = 382,862,381.04/22,111.56
6. Step 6: Final answer
   x = 17,315.03