Finding the Fourth Proportional to 50,947.99, 70,308.86 and 28,288.39

Step by Step Solution

1. Step 1: Write the proportion equation
   50,947.99 : 70,308.86 = 28,288.39 : x
2. Step 2: Convert to fraction form
   50,947.99/70,308.86 = 28,288.39/x
3. Step 3: Cross multiply
   50,947.99x = 70,308.86 × 28,288.39
4. Step 4: Simplify right side
   50,947.99x = 1,988,924,425.87
5. Step 5: Solve for x
   x = 1,988,924,425.87/50,947.99
6. Step 6: Final answer
   x = 39,038.33