Finding the Fourth Proportional to 72,182.94, 99,613.76 and 40,348.42

Step by Step Solution

1. Step 1: Write the proportion equation
   72,182.94 : 99,613.76 = 40,348.42 : x
2. Step 2: Convert to fraction form
   72,182.94/99,613.76 = 40,348.42/x
3. Step 3: Cross multiply
   72,182.94x = 99,613.76 × 40,348.42
4. Step 4: Simplify right side
   72,182.94x = 4,019,257,826.26
5. Step 5: Solve for x
   x = 4,019,257,826.26/72,182.94
6. Step 6: Final answer
   x = 55,681.55