Finding the Fourth Proportional to 200,421.33, 276,581.51 and 109,778.82

Step by Step Solution

1. Step 1: Write the proportion equation
   200,421.33 : 276,581.51 = 109,778.82 : x
2. Step 2: Convert to fraction form
   200,421.33/276,581.51 = 109,778.82/x
3. Step 3: Cross multiply
   200,421.33x = 276,581.51 × 109,778.82
4. Step 4: Simplify right side
   200,421.33x = 30,362,791,801.62
5. Step 5: Solve for x
   x = 30,362,791,801.62/200,421.33
6. Step 6: Final answer
   x = 151,494.81