Finding the Fourth Proportional to 51,540.78, 77,329.56 and 31,796.34

Step by Step Solution

1. Step 1: Write the proportion equation
   51,540.78 : 77,329.56 = 31,796.34 : x
2. Step 2: Convert to fraction form
   51,540.78/77,329.56 = 31,796.34/x
3. Step 3: Cross multiply
   51,540.78x = 77,329.56 × 31,796.34
4. Step 4: Simplify right side
   51,540.78x = 2,458,796,981.81
5. Step 5: Solve for x
   x = 2,458,796,981.81/51,540.78
6. Step 6: Final answer
   x = 47,705.86