Finding the Fourth Proportional to 25,967.32, 38,956.56 and 8,436.76

Step by Step Solution

1. Step 1: Write the proportion equation
   25,967.32 : 38,956.56 = 8,436.76 : x
2. Step 2: Convert to fraction form
   25,967.32/38,956.56 = 8,436.76/x
3. Step 3: Cross multiply
   25,967.32x = 38,956.56 × 8,436.76
4. Step 4: Simplify right side
   25,967.32x = 328,667,147.15
5. Step 5: Solve for x
   x = 328,667,147.15/25,967.32
6. Step 6: Final answer
   x = 12,656.95