Finding the Fourth Proportional to 452,738.31, 678,601.71 and 196,274.79

Step by Step Solution

1. Step 1: Write the proportion equation
   452,738.31 : 678,601.71 = 196,274.79 : x
2. Step 2: Convert to fraction form
   452,738.31/678,601.71 = 196,274.79/x
3. Step 3: Cross multiply
   452,738.31x = 678,601.71 × 196,274.79
4. Step 4: Simplify right side
   452,738.31x = 133,192,408,123.89
5. Step 5: Solve for x
   x = 133,192,408,123.89/452,738.31
6. Step 6: Final answer
   x = 294,192.93