Finding the Fourth Proportional to 200,390.10, 276,538.73 and 108,510.38

Step by Step Solution

1. Step 1: Write the proportion equation
   200,390.10 : 276,538.73 = 108,510.38 : x
2. Step 2: Convert to fraction form
   200,390.10/276,538.73 = 108,510.38/x
3. Step 3: Cross multiply
   200,390.10x = 276,538.73 × 108,510.38
4. Step 4: Simplify right side
   200,390.10x = 30,007,322,677.02
5. Step 5: Solve for x
   x = 30,007,322,677.02/200,390.10
6. Step 6: Final answer
   x = 149,744.54