Finding the Fourth Proportional to 366,978.06, 550,408.05 and 100,676.79

Step by Step Solution

1. Step 1: Write the proportion equation
   366,978.06 : 550,408.05 = 100,676.79 : x
2. Step 2: Convert to fraction form
   366,978.06/550,408.05 = 100,676.79/x
3. Step 3: Cross multiply
   366,978.06x = 550,408.05 × 100,676.79
4. Step 4: Simplify right side
   366,978.06x = 55,413,315,664.16
5. Step 5: Solve for x
   x = 55,413,315,664.16/366,978.06
6. Step 6: Final answer
   x = 150,998.99