Finding the Fourth Proportional to 22,404.72, 30,914.66 and 13,457.15

Step by Step Solution

1. Step 1: Write the proportion equation
   22,404.72 : 30,914.66 = 13,457.15 : x
2. Step 2: Convert to fraction form
   22,404.72/30,914.66 = 13,457.15/x
3. Step 3: Cross multiply
   22,404.72x = 30,914.66 × 13,457.15
4. Step 4: Simplify right side
   22,404.72x = 416,022,994.96
5. Step 5: Solve for x
   x = 416,022,994.96/22,404.72
6. Step 6: Final answer
   x = 18,568.54