Finding the Fourth Proportional to 16,546.56, 22,807.62 and 13,557.12

Step by Step Solution

1. Step 1: Write the proportion equation
   16,546.56 : 22,807.62 = 13,557.12 : x
2. Step 2: Convert to fraction form
   16,546.56/22,807.62 = 13,557.12/x
3. Step 3: Cross multiply
   16,546.56x = 22,807.62 × 13,557.12
4. Step 4: Simplify right side
   16,546.56x = 309,205,641.25
5. Step 5: Solve for x
   x = 309,205,641.25/16,546.56
6. Step 6: Final answer
   x = 18,687.00