Finding the Fourth Proportional to 200,150.64, 276,434.64 and 136,377.72

Step by Step Solution

1. Step 1: Write the proportion equation
   200,150.64 : 276,434.64 = 136,377.72 : x
2. Step 2: Convert to fraction form
   200,150.64/276,434.64 = 136,377.72/x
3. Step 3: Cross multiply
   200,150.64x = 276,434.64 × 136,377.72
4. Step 4: Simplify right side
   200,150.64x = 37,699,525,932.22
5. Step 5: Solve for x
   x = 37,699,525,932.22/200,150.64
6. Step 6: Final answer
   x = 188,355.76