Finding the Fourth Proportional to 16,384.32, 22,587.45 and 13,856.28

Step by Step Solution

1. Step 1: Write the proportion equation
   16,384.32 : 22,587.45 = 13,856.28 : x
2. Step 2: Convert to fraction form
   16,384.32/22,587.45 = 13,856.28/x
3. Step 3: Cross multiply
   16,384.32x = 22,587.45 × 13,856.28
4. Step 4: Simplify right side
   16,384.32x = 312,978,031.69
5. Step 5: Solve for x
   x = 312,978,031.69/16,384.32
6. Step 6: Final answer
   x = 19,102.29