Finding the Fourth Proportional to 67,975.67, 101,978.09 and 28,510.04

Step by Step Solution

1. Step 1: Write the proportion equation
   67,975.67 : 101,978.09 = 28,510.04 : x
2. Step 2: Convert to fraction form
   67,975.67/101,978.09 = 28,510.04/x
3. Step 3: Cross multiply
   67,975.67x = 101,978.09 × 28,510.04
4. Step 4: Simplify right side
   67,975.67x = 2,907,399,644.33
5. Step 5: Solve for x
   x = 2,907,399,644.33/67,975.67
6. Step 6: Final answer
   x = 42,771.18