Finding the Fourth Proportional to 34,078.48, 47,028.36 and 19,928.72

Step by Step Solution

1. Step 1: Write the proportion equation
   34,078.48 : 47,028.36 = 19,928.72 : x
2. Step 2: Convert to fraction form
   34,078.48/47,028.36 = 19,928.72/x
3. Step 3: Cross multiply
   34,078.48x = 47,028.36 × 19,928.72
4. Step 4: Simplify right side
   34,078.48x = 937,215,018.50
5. Step 5: Solve for x
   x = 937,215,018.50/34,078.48
6. Step 6: Final answer
   x = 27,501.67