Finding the Fourth Proportional to 715,870.50, 1,073,812.23 and 217,234.50

Step by Step Solution

1. Step 1: Write the proportion equation
   715,870.50 : 1,073,812.23 = 217,234.50 : x
2. Step 2: Convert to fraction form
   715,870.50/1,073,812.23 = 217,234.50/x
3. Step 3: Cross multiply
   715,870.50x = 1,073,812.23 × 217,234.50
4. Step 4: Simplify right side
   715,870.50x = 233,269,062,877.94
5. Step 5: Solve for x
   x = 233,269,062,877.94/715,870.50
6. Step 6: Final answer
   x = 325,853.72