Finding the Fourth Proportional to 367,487.58, 551,016.78 and 142,585.34

Step by Step Solution

1. Step 1: Write the proportion equation
   367,487.58 : 551,016.78 = 142,585.34 : x
2. Step 2: Convert to fraction form
   367,487.58/551,016.78 = 142,585.34/x
3. Step 3: Cross multiply
   367,487.58x = 551,016.78 × 142,585.34
4. Step 4: Simplify right side
   367,487.58x = 78,566,914,922.01
5. Step 5: Solve for x
   x = 78,566,914,922.01/367,487.58
6. Step 6: Final answer
   x = 213,794.75