Finding the Fourth Proportional to 16,374.72, 22,588.44 and 12,388.80

Step by Step Solution

1. Step 1: Write the proportion equation
   16,374.72 : 22,588.44 = 12,388.80 : x
2. Step 2: Convert to fraction form
   16,374.72/22,588.44 = 12,388.80/x
3. Step 3: Cross multiply
   16,374.72x = 22,588.44 × 12,388.80
4. Step 4: Simplify right side
   16,374.72x = 279,843,665.47
5. Step 5: Solve for x
   x = 279,843,665.47/16,374.72
6. Step 6: Final answer
   x = 17,089.98