Finding the Fourth Proportional to 367,714.10, 507,299.52 and 212,636.72

Step by Step Solution

1. Step 1: Write the proportion equation
   367,714.10 : 507,299.52 = 212,636.72 : x
2. Step 2: Convert to fraction form
   367,714.10/507,299.52 = 212,636.72/x
3. Step 3: Cross multiply
   367,714.10x = 507,299.52 × 212,636.72
4. Step 4: Simplify right side
   367,714.10x = 107,870,505,990.37
5. Step 5: Solve for x
   x = 107,870,505,990.37/367,714.10
6. Step 6: Final answer
   x = 293,354.28