Finding the Fourth Proportional to 42,019.43, 63,038.94 and 13,937.43

Step by Step Solution

1. Step 1: Write the proportion equation
   42,019.43 : 63,038.94 = 13,937.43 : x
2. Step 2: Convert to fraction form
   42,019.43/63,038.94 = 13,937.43/x
3. Step 3: Cross multiply
   42,019.43x = 63,038.94 × 13,937.43
4. Step 4: Simplify right side
   42,019.43x = 878,600,813.52
5. Step 5: Solve for x
   x = 878,600,813.52/42,019.43
6. Step 6: Final answer
   x = 20,909.39