Finding the Fourth Proportional to 12,009.78, 16,573.41 and 6,632.55

Step by Step Solution

1. Step 1: Write the proportion equation
   12,009.78 : 16,573.41 = 6,632.55 : x
2. Step 2: Convert to fraction form
   12,009.78/16,573.41 = 6,632.55/x
3. Step 3: Cross multiply
   12,009.78x = 16,573.41 × 6,632.55
4. Step 4: Simplify right side
   12,009.78x = 109,923,970.50
5. Step 5: Solve for x
   x = 109,923,970.50/12,009.78
6. Step 6: Final answer
   x = 9,152.87