Finding the Fourth Proportional to 42,591.43, 63,878.91 and 16,290.01

Step by Step Solution

1. Step 1: Write the proportion equation
   42,591.43 : 63,878.91 = 16,290.01 : x
2. Step 2: Convert to fraction form
   42,591.43/63,878.91 = 16,290.01/x
3. Step 3: Cross multiply
   42,591.43x = 63,878.91 × 16,290.01
4. Step 4: Simplify right side
   42,591.43x = 1,040,588,082.69
5. Step 5: Solve for x
   x = 1,040,588,082.69/42,591.43
6. Step 6: Final answer
   x = 24,431.87