Finding the Fourth Proportional to 50,978.44, 70,349.34 and 28,316.53

Step by Step Solution

1. Step 1: Write the proportion equation
   50,978.44 : 70,349.34 = 28,316.53 : x
2. Step 2: Convert to fraction form
   50,978.44/70,349.34 = 28,316.53/x
3. Step 3: Cross multiply
   50,978.44x = 70,349.34 × 28,316.53
4. Step 4: Simplify right side
   50,978.44x = 1,992,049,196.59
5. Step 5: Solve for x
   x = 1,992,049,196.59/50,978.44
6. Step 6: Final answer
   x = 39,076.31