Finding the Fourth Proportional to 72,294.87, 99,766.91 and 40,463.78

Step by Step Solution

1. Step 1: Write the proportion equation
   72,294.87 : 99,766.91 = 40,463.78 : x
2. Step 2: Convert to fraction form
   72,294.87/99,766.91 = 40,463.78/x
3. Step 3: Cross multiply
   72,294.87x = 99,766.91 × 40,463.78
4. Step 4: Simplify right side
   72,294.87x = 4,036,945,596.37
5. Step 5: Solve for x
   x = 4,036,945,596.37/72,294.87
6. Step 6: Final answer
   x = 55,840.00