Finding the Fourth Proportional to 40,142.93, 60,215.76 and 19,072.09

Step by Step Solution

1. Step 1: Write the proportion equation
   40,142.93 : 60,215.76 = 19,072.09 : x
2. Step 2: Convert to fraction form
   40,142.93/60,215.76 = 19,072.09/x
3. Step 3: Cross multiply
   40,142.93x = 60,215.76 × 19,072.09
4. Step 4: Simplify right side
   40,142.93x = 1,148,440,397.89
5. Step 5: Solve for x
   x = 1,148,440,397.89/40,142.93
6. Step 6: Final answer
   x = 28,608.79