Finding the Fourth Proportional to 16,637.76, 22,911.12 and 14,868.72

Step by Step Solution

1. Step 1: Write the proportion equation
   16,637.76 : 22,911.12 = 14,868.72 : x
2. Step 2: Convert to fraction form
   16,637.76/22,911.12 = 14,868.72/x
3. Step 3: Cross multiply
   16,637.76x = 22,911.12 × 14,868.72
4. Step 4: Simplify right side
   16,637.76x = 340,659,028.17
5. Step 5: Solve for x
   x = 340,659,028.17/16,637.76
6. Step 6: Final answer
   x = 20,475.05