Finding the Fourth Proportional to 279,085.42, 385,126.14 and 158,234.84

Step by Step Solution

1. Step 1: Write the proportion equation
   279,085.42 : 385,126.14 = 158,234.84 : x
2. Step 2: Convert to fraction form
   279,085.42/385,126.14 = 158,234.84/x
3. Step 3: Cross multiply
   279,085.42x = 385,126.14 × 158,234.84
4. Step 4: Simplify right side
   279,085.42x = 60,940,373,142.72
5. Step 5: Solve for x
   x = 60,940,373,142.72/279,085.42
6. Step 6: Final answer
   x = 218,357.42