Finding the Fourth Proportional to 42,650.14, 63,986.55 and 14,570.15

Step by Step Solution

1. Step 1: Write the proportion equation
   42,650.14 : 63,986.55 = 14,570.15 : x
2. Step 2: Convert to fraction form
   42,650.14/63,986.55 = 14,570.15/x
3. Step 3: Cross multiply
   42,650.14x = 63,986.55 × 14,570.15
4. Step 4: Simplify right side
   42,650.14x = 932,293,238.70
5. Step 5: Solve for x
   x = 932,293,238.70/42,650.14
6. Step 6: Final answer
   x = 21,859.09