Finding the Fourth Proportional to 25,830.42, 38,744.27 and 8,298.89

Step by Step Solution

1. Step 1: Write the proportion equation
   25,830.42 : 38,744.27 = 8,298.89 : x
2. Step 2: Convert to fraction form
   25,830.42/38,744.27 = 8,298.89/x
3. Step 3: Cross multiply
   25,830.42x = 38,744.27 × 8,298.89
4. Step 4: Simplify right side
   25,830.42x = 321,534,199.64
5. Step 5: Solve for x
   x = 321,534,199.64/25,830.42
6. Step 6: Final answer
   x = 12,447.89