Finding the Fourth Proportional to 223,112.72, 307,894.92 and 133,688.72

Step by Step Solution

1. Step 1: Write the proportion equation
   223,112.72 : 307,894.92 = 133,688.72 : x
2. Step 2: Convert to fraction form
   223,112.72/307,894.92 = 133,688.72/x
3. Step 3: Cross multiply
   223,112.72x = 307,894.92 × 133,688.72
4. Step 4: Simplify right side
   223,112.72x = 41,162,077,749.30
5. Step 5: Solve for x
   x = 41,162,077,749.30/223,112.72
6. Step 6: Final answer
   x = 184,490.05