Finding the Fourth Proportional to 39,926.43, 55,091.60 and 25,598.79

Step by Step Solution

1. Step 1: Write the proportion equation
   39,926.43 : 55,091.60 = 25,598.79 : x
2. Step 2: Convert to fraction form
   39,926.43/55,091.60 = 25,598.79/x
3. Step 3: Cross multiply
   39,926.43x = 55,091.60 × 25,598.79
4. Step 4: Simplify right side
   39,926.43x = 1,410,278,171.17
5. Step 5: Solve for x
   x = 1,410,278,171.17/39,926.43
6. Step 6: Final answer
   x = 35,321.92