Finding the Fourth Proportional to 14,878.53, 22,284.99 and 13,500.72

Step by Step Solution

1. Step 1: Write the proportion equation
   14,878.53 : 22,284.99 = 13,500.72 : x
2. Step 2: Convert to fraction form
   14,878.53/22,284.99 = 13,500.72/x
3. Step 3: Cross multiply
   14,878.53x = 22,284.99 × 13,500.72
4. Step 4: Simplify right side
   14,878.53x = 300,863,410.19
5. Step 5: Solve for x
   x = 300,863,410.19/14,878.53
6. Step 6: Final answer
   x = 20,221.31