Finding the Fourth Proportional to 386,279.89, 579,676.91 and 158,762.09

Step by Step Solution

1. Step 1: Write the proportion equation
   386,279.89 : 579,676.91 = 158,762.09 : x
2. Step 2: Convert to fraction form
   386,279.89/579,676.91 = 158,762.09/x
3. Step 3: Cross multiply
   386,279.89x = 579,676.91 × 158,762.09
4. Step 4: Simplify right side
   386,279.89x = 92,030,718,411.72
5. Step 5: Solve for x
   x = 92,030,718,411.72/386,279.89
6. Step 6: Final answer
   x = 238,248.80