Finding the Fourth Proportional to 72,056.54, 99,433.90 and 40,227.46

Step by Step Solution

1. Step 1: Write the proportion equation
   72,056.54 : 99,433.90 = 40,227.46 : x
2. Step 2: Convert to fraction form
   72,056.54/99,433.90 = 40,227.46/x
3. Step 3: Cross multiply
   72,056.54x = 99,433.90 × 40,227.46
4. Step 4: Simplify right side
   72,056.54x = 3,999,973,234.89
5. Step 5: Solve for x
   x = 3,999,973,234.89/72,056.54
6. Step 6: Final answer
   x = 55,511.59