Finding the Fourth Proportional to 72,025.57, 99,395.37 and 40,194.46

Step by Step Solution

1. Step 1: Write the proportion equation
   72,025.57 : 99,395.37 = 40,194.46 : x
2. Step 2: Convert to fraction form
   72,025.57/99,395.37 = 40,194.46/x
3. Step 3: Cross multiply
   72,025.57x = 99,395.37 × 40,194.46
4. Step 4: Simplify right side
   72,025.57x = 3,995,143,347.89
5. Step 5: Solve for x
   x = 3,995,143,347.89/72,025.57
6. Step 6: Final answer
   x = 55,468.40