Finding the Fourth Proportional to 42,288.24, 63,431.56 and 16,993.53

Step by Step Solution

1. Step 1: Write the proportion equation
   42,288.24 : 63,431.56 = 16,993.53 : x
2. Step 2: Convert to fraction form
   42,288.24/63,431.56 = 16,993.53/x
3. Step 3: Cross multiply
   42,288.24x = 63,431.56 × 16,993.53
4. Step 4: Simplify right side
   42,288.24x = 1,077,926,117.81
5. Step 5: Solve for x
   x = 1,077,926,117.81/42,288.24
6. Step 6: Final answer
   x = 25,489.97