Finding the Fourth Proportional to 25,164.56, 37,751.60 and 8,520.12

Step by Step Solution

1. Step 1: Write the proportion equation
   25,164.56 : 37,751.60 = 8,520.12 : x
2. Step 2: Convert to fraction form
   25,164.56/37,751.60 = 8,520.12/x
3. Step 3: Cross multiply
   25,164.56x = 37,751.60 × 8,520.12
4. Step 4: Simplify right side
   25,164.56x = 321,648,162.19
5. Step 5: Solve for x
   x = 321,648,162.19/25,164.56
6. Step 6: Final answer
   x = 12,781.79