Finding the Fourth Proportional to 367,002.72, 550,317.26 and 142,427.58

Step by Step Solution

1. Step 1: Write the proportion equation
   367,002.72 : 550,317.26 = 142,427.58 : x
2. Step 2: Convert to fraction form
   367,002.72/550,317.26 = 142,427.58/x
3. Step 3: Cross multiply
   367,002.72x = 550,317.26 × 142,427.58
4. Step 4: Simplify right side
   367,002.72x = 78,380,354,861.89
5. Step 5: Solve for x
   x = 78,380,354,861.89/367,002.72
6. Step 6: Final answer
   x = 213,568.87