Finding the Fourth Proportional to 42,156.25, 63,259.68 and 16,851.24

Step by Step Solution

1. Step 1: Write the proportion equation
   42,156.25 : 63,259.68 = 16,851.24 : x
2. Step 2: Convert to fraction form
   42,156.25/63,259.68 = 16,851.24/x
3. Step 3: Cross multiply
   42,156.25x = 63,259.68 × 16,851.24
4. Step 4: Simplify right side
   42,156.25x = 1,066,004,113.20
5. Step 5: Solve for x
   x = 1,066,004,113.20/42,156.25
6. Step 6: Final answer
   x = 25,286.98