Finding the Fourth Proportional to 16,343.55, 22,565.61 and 12,762.54

Step by Step Solution

1. Step 1: Write the proportion equation
   16,343.55 : 22,565.61 = 12,762.54 : x
2. Step 2: Convert to fraction form
   16,343.55/22,565.61 = 12,762.54/x
3. Step 3: Cross multiply
   16,343.55x = 22,565.61 × 12,762.54
4. Step 4: Simplify right side
   16,343.55x = 287,994,500.25
5. Step 5: Solve for x
   x = 287,994,500.25/16,343.55
6. Step 6: Final answer
   x = 17,621.29