Finding the Fourth Proportional to 25,664.86, 35,416.50 and 16,109.88

Step by Step Solution

1. Step 1: Write the proportion equation
   25,664.86 : 35,416.50 = 16,109.88 : x
2. Step 2: Convert to fraction form
   25,664.86/35,416.50 = 16,109.88/x
3. Step 3: Cross multiply
   25,664.86x = 35,416.50 × 16,109.88
4. Step 4: Simplify right side
   25,664.86x = 570,555,387.94
5. Step 5: Solve for x
   x = 570,555,387.94/25,664.86
6. Step 6: Final answer
   x = 22,231.00