Finding the Fourth Proportional to 262,426.37, 362,322.72 and 201,890.21

Step by Step Solution

1. Step 1: Write the proportion equation
   262,426.37 : 362,322.72 = 201,890.21 : x
2. Step 2: Convert to fraction form
   262,426.37/362,322.72 = 201,890.21/x
3. Step 3: Cross multiply
   262,426.37x = 362,322.72 × 201,890.21
4. Step 4: Simplify right side
   262,426.37x = 73,149,408,216.96
5. Step 5: Solve for x
   x = 73,149,408,216.96/262,426.37
6. Step 6: Final answer
   x = 278,742.60