Finding the Fourth Proportional to 72,965.16, 100,691.18 and 41,144.32

Step by Step Solution

1. Step 1: Write the proportion equation
   72,965.16 : 100,691.18 = 41,144.32 : x
2. Step 2: Convert to fraction form
   72,965.16/100,691.18 = 41,144.32/x
3. Step 3: Cross multiply
   72,965.16x = 100,691.18 × 41,144.32
4. Step 4: Simplify right side
   72,965.16x = 4,142,870,131.10
5. Step 5: Solve for x
   x = 4,142,870,131.10/72,965.16
6. Step 6: Final answer
   x = 56,778.74