Finding the Fourth Proportional to 50,828.06, 70,141.20 and 28,472.06

Step by Step Solution

1. Step 1: Write the proportion equation
   50,828.06 : 70,141.20 = 28,472.06 : x
2. Step 2: Convert to fraction form
   50,828.06/70,141.20 = 28,472.06/x
3. Step 3: Cross multiply
   50,828.06x = 70,141.20 × 28,472.06
4. Step 4: Simplify right side
   50,828.06x = 1,997,064,454.87
5. Step 5: Solve for x
   x = 1,997,064,454.87/50,828.06
6. Step 6: Final answer
   x = 39,290.59