Finding the Fourth Proportional to 191,482.72, 264,286.20 and 115,005.37

Step by Step Solution

1. Step 1: Write the proportion equation
   191,482.72 : 264,286.20 = 115,005.37 : x
2. Step 2: Convert to fraction form
   191,482.72/264,286.20 = 115,005.37/x
3. Step 3: Cross multiply
   191,482.72x = 264,286.20 × 115,005.37
4. Step 4: Simplify right side
   191,482.72x = 30,394,332,216.89
5. Step 5: Solve for x
   x = 30,394,332,216.89/191,482.72
6. Step 6: Final answer
   x = 158,731.46