Finding the Fourth Proportional to 47,155.69, 70,738.15 and 17,178.07

Step by Step Solution

1. Step 1: Write the proportion equation
   47,155.69 : 70,738.15 = 17,178.07 : x
2. Step 2: Convert to fraction form
   47,155.69/70,738.15 = 17,178.07/x
3. Step 3: Cross multiply
   47,155.69x = 70,738.15 × 17,178.07
4. Step 4: Simplify right side
   47,155.69x = 1,215,144,806.48
5. Step 5: Solve for x
   x = 1,215,144,806.48/47,155.69
6. Step 6: Final answer
   x = 25,768.79