Finding the Fourth Proportional to 42,116.95, 63,181.91 and 19,942.39

Step by Step Solution

1. Step 1: Write the proportion equation
   42,116.95 : 63,181.91 = 19,942.39 : x
2. Step 2: Convert to fraction form
   42,116.95/63,181.91 = 19,942.39/x
3. Step 3: Cross multiply
   42,116.95x = 63,181.91 × 19,942.39
4. Step 4: Simplify right side
   42,116.95x = 1,259,998,290.16
5. Step 5: Solve for x
   x = 1,259,998,290.16/42,116.95
6. Step 6: Final answer
   x = 29,916.66