Finding the Fourth Proportional to 49,168.78, 73,748.31 and 19,578.67

Step by Step Solution

1. Step 1: Write the proportion equation
   49,168.78 : 73,748.31 = 19,578.67 : x
2. Step 2: Convert to fraction form
   49,168.78/73,748.31 = 19,578.67/x
3. Step 3: Cross multiply
   49,168.78x = 73,748.31 × 19,578.67
4. Step 4: Simplify right side
   49,168.78x = 1,443,893,824.55
5. Step 5: Solve for x
   x = 1,443,893,824.55/49,168.78
6. Step 6: Final answer
   x = 29,366.07