Finding the Fourth Proportional to 415,014.89, 572,741.86 and 253,819.31

Step by Step Solution

1. Step 1: Write the proportion equation
   415,014.89 : 572,741.86 = 253,819.31 : x
2. Step 2: Convert to fraction form
   415,014.89/572,741.86 = 253,819.31/x
3. Step 3: Cross multiply
   415,014.89x = 572,741.86 × 253,819.31
4. Step 4: Simplify right side
   415,014.89x = 145,372,944,510.62
5. Step 5: Solve for x
   x = 145,372,944,510.62/415,014.89
6. Step 6: Final answer
   x = 350,283.69