Finding the Fourth Proportional to 47,057.34, 64,906.38 and 39,934.71

Step by Step Solution

1. Step 1: Write the proportion equation
   47,057.34 : 64,906.38 = 39,934.71 : x
2. Step 2: Convert to fraction form
   47,057.34/64,906.38 = 39,934.71/x
3. Step 3: Cross multiply
   47,057.34x = 64,906.38 × 39,934.71
4. Step 4: Simplify right side
   47,057.34x = 2,592,017,462.45
5. Step 5: Solve for x
   x = 2,592,017,462.45/47,057.34
6. Step 6: Final answer
   x = 55,082.11