Finding the Fourth Proportional to 479,870.61, 720,248.72 and 243,379.37

Step by Step Solution

1. Step 1: Write the proportion equation
   479,870.61 : 720,248.72 = 243,379.37 : x
2. Step 2: Convert to fraction form
   479,870.61/720,248.72 = 243,379.37/x
3. Step 3: Cross multiply
   479,870.61x = 720,248.72 × 243,379.37
4. Step 4: Simplify right side
   479,870.61x = 175,293,679,716.91
5. Step 5: Solve for x
   x = 175,293,679,716.91/479,870.61
6. Step 6: Final answer
   x = 365,293.64