Finding the Fourth Proportional to 233,109.15, 321,690.16 and 131,134.69

Step by Step Solution

1. Step 1: Write the proportion equation
   233,109.15 : 321,690.16 = 131,134.69 : x
2. Step 2: Convert to fraction form
   233,109.15/321,690.16 = 131,134.69/x
3. Step 3: Cross multiply
   233,109.15x = 321,690.16 × 131,134.69
4. Step 4: Simplify right side
   233,109.15x = 42,184,739,735.49
5. Step 5: Solve for x
   x = 42,184,739,735.49/233,109.15
6. Step 6: Final answer
   x = 180,965.61