Finding the Fourth Proportional to 25,820.25, 35,631.95 and 14,642.25

Step by Step Solution

1. Step 1: Write the proportion equation
   25,820.25 : 35,631.95 = 14,642.25 : x
2. Step 2: Convert to fraction form
   25,820.25/35,631.95 = 14,642.25/x
3. Step 3: Cross multiply
   25,820.25x = 35,631.95 × 14,642.25
4. Step 4: Simplify right side
   25,820.25x = 521,731,919.89
5. Step 5: Solve for x
   x = 521,731,919.89/25,820.25
6. Step 6: Final answer
   x = 20,206.31