Finding the Fourth Proportional to 114,991.91, 172,475.72 and 30,760.57

Step by Step Solution

1. Step 1: Write the proportion equation
   114,991.91 : 172,475.72 = 30,760.57 : x
2. Step 2: Convert to fraction form
   114,991.91/172,475.72 = 30,760.57/x
3. Step 3: Cross multiply
   114,991.91x = 172,475.72 × 30,760.57
4. Step 4: Simplify right side
   114,991.91x = 5,305,451,104.07
5. Step 5: Solve for x
   x = 5,305,451,104.07/114,991.91
6. Step 6: Final answer
   x = 46,137.61