Finding the Fourth Proportional to 143,196.10, 214,794.15 and 73,212.10

Step by Step Solution

1. Step 1: Write the proportion equation
   143,196.10 : 214,794.15 = 73,212.10 : x
2. Step 2: Convert to fraction form
   143,196.10/214,794.15 = 73,212.10/x
3. Step 3: Cross multiply
   143,196.10x = 214,794.15 × 73,212.10
4. Step 4: Simplify right side
   143,196.10x = 15,725,530,789.22
5. Step 5: Solve for x
   x = 15,725,530,789.22/143,196.10
6. Step 6: Final answer
   x = 109,818.15