Finding the Fourth Proportional to 14,697.76, 21,906.50 and 13,867.52

Step by Step Solution

1. Step 1: Write the proportion equation
   14,697.76 : 21,906.50 = 13,867.52 : x
2. Step 2: Convert to fraction form
   14,697.76/21,906.50 = 13,867.52/x
3. Step 3: Cross multiply
   14,697.76x = 21,906.50 × 13,867.52
4. Step 4: Simplify right side
   14,697.76x = 303,788,826.88
5. Step 5: Solve for x
   x = 303,788,826.88/14,697.76
6. Step 6: Final answer
   x = 20,669.06