Finding the Fourth Proportional to 467,665.68, 645,223.72 and 263,690.96

Step by Step Solution

1. Step 1: Write the proportion equation
   467,665.68 : 645,223.72 = 263,690.96 : x
2. Step 2: Convert to fraction form
   467,665.68/645,223.72 = 263,690.96/x
3. Step 3: Cross multiply
   467,665.68x = 645,223.72 × 263,690.96
4. Step 4: Simplify right side
   467,665.68x = 170,139,662,141.57
5. Step 5: Solve for x
   x = 170,139,662,141.57/467,665.68
6. Step 6: Final answer
   x = 363,806.17