Finding the Fourth Proportional to 231,081.75, 318,838.14 and 134,228.07

Step by Step Solution

1. Step 1: Write the proportion equation
   231,081.75 : 318,838.14 = 134,228.07 : x
2. Step 2: Convert to fraction form
   231,081.75/318,838.14 = 134,228.07/x
3. Step 3: Cross multiply
   231,081.75x = 318,838.14 × 134,228.07
4. Step 4: Simplify right side
   231,081.75x = 42,797,028,174.59
5. Step 5: Solve for x
   x = 42,797,028,174.59/231,081.75
6. Step 6: Final answer
   x = 185,202.98