Finding the Fourth Proportional to 47,704.78, 65,862.84 and 30,715.30

Step by Step Solution

1. Step 1: Write the proportion equation
   47,704.78 : 65,862.84 = 30,715.30 : x
2. Step 2: Convert to fraction form
   47,704.78/65,862.84 = 30,715.30/x
3. Step 3: Cross multiply
   47,704.78x = 65,862.84 × 30,715.30
4. Step 4: Simplify right side
   47,704.78x = 2,022,996,889.45
5. Step 5: Solve for x
   x = 2,022,996,889.45/47,704.78
6. Step 6: Final answer
   x = 42,406.59