Finding the Fourth Proportional to 72,179.58, 99,608.22 and 40,349.82

Step by Step Solution

1. Step 1: Write the proportion equation
   72,179.58 : 99,608.22 = 40,349.82 : x
2. Step 2: Convert to fraction form
   72,179.58/99,608.22 = 40,349.82/x
3. Step 3: Cross multiply
   72,179.58x = 99,608.22 × 40,349.82
4. Step 4: Simplify right side
   72,179.58x = 4,019,173,747.52
5. Step 5: Solve for x
   x = 4,019,173,747.52/72,179.58
6. Step 6: Final answer
   x = 55,682.97