Finding the Fourth Proportional to 42,253.05, 63,378.83 and 16,959

Step by Step Solution

1. Step 1: Write the proportion equation
   42,253.05 : 63,378.83 = 16,959 : x
2. Step 2: Convert to fraction form
   42,253.05/63,378.83 = 16,959/x
3. Step 3: Cross multiply
   42,253.05x = 63,378.83 × 16,959
4. Step 4: Simplify right side
   42,253.05x = 1,074,841,493.18
5. Step 5: Solve for x
   x = 1,074,841,493.18/42,253.05
6. Step 6: Final answer
   x = 25,438.20