Finding the Fourth Proportional to 72,296.48, 99,768.16 and 40,465.37

Step by Step Solution

1. Step 1: Write the proportion equation
   72,296.48 : 99,768.16 = 40,465.37 : x
2. Step 2: Convert to fraction form
   72,296.48/99,768.16 = 40,465.37/x
3. Step 3: Cross multiply
   72,296.48x = 99,768.16 × 40,465.37
4. Step 4: Simplify right side
   72,296.48x = 4,037,155,508.62
5. Step 5: Solve for x
   x = 4,037,155,508.62/72,296.48
6. Step 6: Final answer
   x = 55,841.66