Finding the Fourth Proportional to 469,667.60, 703,924.05 and 216,596.78

Step by Step Solution

1. Step 1: Write the proportion equation
   469,667.60 : 703,924.05 = 216,596.78 : x
2. Step 2: Convert to fraction form
   469,667.60/703,924.05 = 216,596.78/x
3. Step 3: Cross multiply
   469,667.60x = 703,924.05 × 216,596.78
4. Step 4: Simplify right side
   469,667.60x = 152,467,682,594.56
5. Step 5: Solve for x
   x = 152,467,682,594.56/469,667.60
6. Step 6: Final answer
   x = 324,628.91