Finding the Fourth Proportional to 47,142.72, 65,029.32 and 30,375.72

Step by Step Solution

1. Step 1: Write the proportion equation
   47,142.72 : 65,029.32 = 30,375.72 : x
2. Step 2: Convert to fraction form
   47,142.72/65,029.32 = 30,375.72/x
3. Step 3: Cross multiply
   47,142.72x = 65,029.32 × 30,375.72
4. Step 4: Simplify right side
   47,142.72x = 1,975,312,416.11
5. Step 5: Solve for x
   x = 1,975,312,416.11/47,142.72
6. Step 6: Final answer
   x = 41,900.69