Finding the Fourth Proportional to 308,926.08, 426,443.04 and 261,426.24

Step by Step Solution

1. Step 1: Write the proportion equation
   308,926.08 : 426,443.04 = 261,426.24 : x
2. Step 2: Convert to fraction form
   308,926.08/426,443.04 = 261,426.24/x
3. Step 3: Cross multiply
   308,926.08x = 426,443.04 × 261,426.24
4. Step 4: Simplify right side
   308,926.08x = 111,483,400,521.37
5. Step 5: Solve for x
   x = 111,483,400,521.37/308,926.08
6. Step 6: Final answer
   x = 360,874.03