Finding the Fourth Proportional to 80,653.42, 121,004.72 and 41,238.22

Step by Step Solution

1. Step 1: Write the proportion equation
   80,653.42 : 121,004.72 = 41,238.22 : x
2. Step 2: Convert to fraction form
   80,653.42/121,004.72 = 41,238.22/x
3. Step 3: Cross multiply
   80,653.42x = 121,004.72 × 41,238.22
4. Step 4: Simplify right side
   80,653.42x = 4,990,019,264.40
5. Step 5: Solve for x
   x = 4,990,019,264.40/80,653.42
6. Step 6: Final answer
   x = 61,869.90