Finding the Fourth Proportional to 367,491.58, 551,022.78 and 142,589.34

Step by Step Solution

1. Step 1: Write the proportion equation
   367,491.58 : 551,022.78 = 142,589.34 : x
2. Step 2: Convert to fraction form
   367,491.58/551,022.78 = 142,589.34/x
3. Step 3: Cross multiply
   367,491.58x = 551,022.78 × 142,589.34
4. Step 4: Simplify right side
   367,491.58x = 78,569,974,525.17
5. Step 5: Solve for x
   x = 78,569,974,525.17/367,491.58
6. Step 6: Final answer
   x = 213,800.75