Finding the Fourth Proportional to 46,912.05, 64,738.71 and 25,691.31

Step by Step Solution

1. Step 1: Write the proportion equation
   46,912.05 : 64,738.71 = 25,691.31 : x
2. Step 2: Convert to fraction form
   46,912.05/64,738.71 = 25,691.31/x
3. Step 3: Cross multiply
   46,912.05x = 64,738.71 × 25,691.31
4. Step 4: Simplify right side
   46,912.05x = 1,663,222,267.61
5. Step 5: Solve for x
   x = 1,663,222,267.61/46,912.05
6. Step 6: Final answer
   x = 35,454.05