Finding the Fourth Proportional to 34,275.48, 47,300.52 and 20,128.56

Step by Step Solution

1. Step 1: Write the proportion equation
   34,275.48 : 47,300.52 = 20,128.56 : x
2. Step 2: Convert to fraction form
   34,275.48/47,300.52 = 20,128.56/x
3. Step 3: Cross multiply
   34,275.48x = 47,300.52 × 20,128.56
4. Step 4: Simplify right side
   34,275.48x = 952,091,354.85
5. Step 5: Solve for x
   x = 952,091,354.85/34,275.48
6. Step 6: Final answer
   x = 27,777.62