Finding the Fourth Proportional to 279,662.86, 385,921.06 and 158,801.57

Step by Step Solution

1. Step 1: Write the proportion equation
   279,662.86 : 385,921.06 = 158,801.57 : x
2. Step 2: Convert to fraction form
   279,662.86/385,921.06 = 158,801.57/x
3. Step 3: Cross multiply
   279,662.86x = 385,921.06 × 158,801.57
4. Step 4: Simplify right side
   279,662.86x = 61,284,870,224.06
5. Step 5: Solve for x
   x = 61,284,870,224.06/279,662.86
6. Step 6: Final answer
   x = 219,138.39