Finding the Fourth Proportional to 47,019.78, 64,888.56 and 25,799.81

Step by Step Solution

1. Step 1: Write the proportion equation
   47,019.78 : 64,888.56 = 25,799.81 : x
2. Step 2: Convert to fraction form
   47,019.78/64,888.56 = 25,799.81/x
3. Step 3: Cross multiply
   47,019.78x = 64,888.56 × 25,799.81
4. Step 4: Simplify right side
   47,019.78x = 1,674,112,194.73
5. Step 5: Solve for x
   x = 1,674,112,194.73/47,019.78
6. Step 6: Final answer
   x = 35,604.42