Finding the Fourth Proportional to 49,401.72, 74,113.47 and 19,418.85

Step by Step Solution

1. Step 1: Write the proportion equation
   49,401.72 : 74,113.47 = 19,418.85 : x
2. Step 2: Convert to fraction form
   49,401.72/74,113.47 = 19,418.85/x
3. Step 3: Cross multiply
   49,401.72x = 74,113.47 × 19,418.85
4. Step 4: Simplify right side
   49,401.72x = 1,439,198,356.91
5. Step 5: Solve for x
   x = 1,439,198,356.91/49,401.72
6. Step 6: Final answer
   x = 29,132.56