Finding the Fourth Proportional to 25,558.69, 35,271.77 and 13,917.68

Step by Step Solution

1. Step 1: Write the proportion equation
   25,558.69 : 35,271.77 = 13,917.68 : x
2. Step 2: Convert to fraction form
   25,558.69/35,271.77 = 13,917.68/x
3. Step 3: Cross multiply
   25,558.69x = 35,271.77 × 13,917.68
4. Step 4: Simplify right side
   25,558.69x = 490,901,066.33
5. Step 5: Solve for x
   x = 490,901,066.33/25,558.69
6. Step 6: Final answer
   x = 19,206.82