Finding the Fourth Proportional to 42,103.62, 63,142.28 and 14,017.12

Step by Step Solution

1. Step 1: Write the proportion equation
   42,103.62 : 63,142.28 = 14,017.12 : x
2. Step 2: Convert to fraction form
   42,103.62/63,142.28 = 14,017.12/x
3. Step 3: Cross multiply
   42,103.62x = 63,142.28 × 14,017.12
4. Step 4: Simplify right side
   42,103.62x = 885,072,915.83
5. Step 5: Solve for x
   x = 885,072,915.83/42,103.62
6. Step 6: Final answer
   x = 21,021.30