Finding the Fourth Proportional to 452,491.72, 624,439.83 and 251,287.72

Step by Step Solution

1. Step 1: Write the proportion equation
   452,491.72 : 624,439.83 = 251,287.72 : x
2. Step 2: Convert to fraction form
   452,491.72/624,439.83 = 251,287.72/x
3. Step 3: Cross multiply
   452,491.72x = 624,439.83 × 251,287.72
4. Step 4: Simplify right side
   452,491.72x = 156,914,061,157.89
5. Step 5: Solve for x
   x = 156,914,061,157.89/452,491.72
6. Step 6: Final answer
   x = 346,777.75