Finding the Fourth Proportional to 47,147.16, 65,042.94 and 30,147.72

Step by Step Solution

1. Step 1: Write the proportion equation
   47,147.16 : 65,042.94 = 30,147.72 : x
2. Step 2: Convert to fraction form
   47,147.16/65,042.94 = 30,147.72/x
3. Step 3: Cross multiply
   47,147.16x = 65,042.94 × 30,147.72
4. Step 4: Simplify right side
   47,147.16x = 1,960,896,343.10
5. Step 5: Solve for x
   x = 1,960,896,343.10/47,147.16
6. Step 6: Final answer
   x = 41,590.97