Finding the Fourth Proportional to 34,728.16, 47,928.72 and 19,824.16

Step by Step Solution

1. Step 1: Write the proportion equation
   34,728.16 : 47,928.72 = 19,824.16 : x
2. Step 2: Convert to fraction form
   34,728.16/47,928.72 = 19,824.16/x
3. Step 3: Cross multiply
   34,728.16x = 47,928.72 × 19,824.16
4. Step 4: Simplify right side
   34,728.16x = 950,146,613.88
5. Step 5: Solve for x
   x = 950,146,613.88/34,728.16
6. Step 6: Final answer
   x = 27,359.54