Finding the Fourth Proportional to 199,638.07, 275,501.96 and 108,995.83

Step by Step Solution

1. Step 1: Write the proportion equation
   199,638.07 : 275,501.96 = 108,995.83 : x
2. Step 2: Convert to fraction form
   199,638.07/275,501.96 = 108,995.83/x
3. Step 3: Cross multiply
   199,638.07x = 275,501.96 × 108,995.83
4. Step 4: Simplify right side
   199,638.07x = 30,028,563,971.83
5. Step 5: Solve for x
   x = 30,028,563,971.83/199,638.07
6. Step 6: Final answer
   x = 150,415.02