Finding the Fourth Proportional to 415,196.68, 573,013.82 and 254,158.15

Step by Step Solution

1. Step 1: Write the proportion equation
   415,196.68 : 573,013.82 = 254,158.15 : x
2. Step 2: Convert to fraction form
   415,196.68/573,013.82 = 254,158.15/x
3. Step 3: Cross multiply
   415,196.68x = 573,013.82 × 254,158.15
4. Step 4: Simplify right side
   415,196.68x = 145,636,132,415.63
5. Step 5: Solve for x
   x = 145,636,132,415.63/415,196.68
6. Step 6: Final answer
   x = 350,764.20