Finding the Fourth Proportional to 200,656.06, 276,908.50 and 120,086.98

Step by Step Solution

1. Step 1: Write the proportion equation
   200,656.06 : 276,908.50 = 120,086.98 : x
2. Step 2: Convert to fraction form
   200,656.06/276,908.50 = 120,086.98/x
3. Step 3: Cross multiply
   200,656.06x = 276,908.50 × 120,086.98
4. Step 4: Simplify right side
   200,656.06x = 33,253,105,501.33
5. Step 5: Solve for x
   x = 33,253,105,501.33/200,656.06
6. Step 6: Final answer
   x = 165,721.91