Finding the Fourth Proportional to 16,256.30, 22,428.50 and 9,541.80

Step by Step Solution

1. Step 1: Write the proportion equation
   16,256.30 : 22,428.50 = 9,541.80 : x
2. Step 2: Convert to fraction form
   16,256.30/22,428.50 = 9,541.80/x
3. Step 3: Cross multiply
   16,256.30x = 22,428.50 × 9,541.80
4. Step 4: Simplify right side
   16,256.30x = 214,008,213.59
5. Step 5: Solve for x
   x = 214,008,213.59/16,256.30
6. Step 6: Final answer
   x = 13,164.64