Finding the Fourth Proportional to 16,388.84, 22,615.68 and 9,314.72

Step by Step Solution

1. Step 1: Write the proportion equation
   16,388.84 : 22,615.68 = 9,314.72 : x
2. Step 2: Convert to fraction form
   16,388.84/22,615.68 = 9,314.72/x
3. Step 3: Cross multiply
   16,388.84x = 22,615.68 × 9,314.72
4. Step 4: Simplify right side
   16,388.84x = 210,658,726.81
5. Step 5: Solve for x
   x = 210,658,726.81/16,388.84
6. Step 6: Final answer
   x = 12,853.79