Finding the Fourth Proportional to 47,321.42, 71,028.30 and 39,085.34

Step by Step Solution

1. Step 1: Write the proportion equation
   47,321.42 : 71,028.30 = 39,085.34 : x
2. Step 2: Convert to fraction form
   47,321.42/71,028.30 = 39,085.34/x
3. Step 3: Cross multiply
   47,321.42x = 71,028.30 × 39,085.34
4. Step 4: Simplify right side
   47,321.42x = 2,776,165,255.12
5. Step 5: Solve for x
   x = 2,776,165,255.12/47,321.42
6. Step 6: Final answer
   x = 58,666.14