Finding the Fourth Proportional to 25,978.38, 35,850.23 and 16,435.33

Step by Step Solution

1. Step 1: Write the proportion equation
   25,978.38 : 35,850.23 = 16,435.33 : x
2. Step 2: Convert to fraction form
   25,978.38/35,850.23 = 16,435.33/x
3. Step 3: Cross multiply
   25,978.38x = 35,850.23 × 16,435.33
4. Step 4: Simplify right side
   25,978.38x = 589,210,360.63
5. Step 5: Solve for x
   x = 589,210,360.63/25,978.38
6. Step 6: Final answer
   x = 22,680.80