Finding the Fourth Proportional to 67,055.28, 100,601.76 and 19,671.50

Step by Step Solution

1. Step 1: Write the proportion equation
   67,055.28 : 100,601.76 = 19,671.50 : x
2. Step 2: Convert to fraction form
   67,055.28/100,601.76 = 19,671.50/x
3. Step 3: Cross multiply
   67,055.28x = 100,601.76 × 19,671.50
4. Step 4: Simplify right side
   67,055.28x = 1,978,987,521.84
5. Step 5: Solve for x
   x = 1,978,987,521.84/67,055.28
6. Step 6: Final answer
   x = 29,512.78