Finding the Fourth Proportional to 25,978.52, 38,971.88 and 8,444.25

Step by Step Solution

1. Step 1: Write the proportion equation
   25,978.52 : 38,971.88 = 8,444.25 : x
2. Step 2: Convert to fraction form
   25,978.52/38,971.88 = 8,444.25/x
3. Step 3: Cross multiply
   25,978.52x = 38,971.88 × 8,444.25
4. Step 4: Simplify right side
   25,978.52x = 329,088,334.63
5. Step 5: Solve for x
   x = 329,088,334.63/25,978.52
6. Step 6: Final answer
   x = 12,667.71