Finding the Fourth Proportional to 444,078.89, 612,813.71 and 253,153.79

Step by Step Solution

1. Step 1: Write the proportion equation
   444,078.89 : 612,813.71 = 253,153.79 : x
2. Step 2: Convert to fraction form
   444,078.89/612,813.71 = 253,153.79/x
3. Step 3: Cross multiply
   444,078.89x = 612,813.71 × 253,153.79
4. Step 4: Simplify right side
   444,078.89x = 155,136,111,984.69
5. Step 5: Solve for x
   x = 155,136,111,984.69/444,078.89
6. Step 6: Final answer
   x = 349,343.59