Finding the Fourth Proportional to 456,427.89, 685,035.50 and 176,141.97

Step by Step Solution

1. Step 1: Write the proportion equation
   456,427.89 : 685,035.50 = 176,141.97 : x
2. Step 2: Convert to fraction form
   456,427.89/685,035.50 = 176,141.97/x
3. Step 3: Cross multiply
   456,427.89x = 685,035.50 × 176,141.97
4. Step 4: Simplify right side
   456,427.89x = 120,663,501,609.23
5. Step 5: Solve for x
   x = 120,663,501,609.23/456,427.89
6. Step 6: Final answer
   x = 264,364.87