Finding the Fourth Proportional to 50,698.47, 69,962.61 and 28,038.72

Step by Step Solution

1. Step 1: Write the proportion equation
   50,698.47 : 69,962.61 = 28,038.72 : x
2. Step 2: Convert to fraction form
   50,698.47/69,962.61 = 28,038.72/x
3. Step 3: Cross multiply
   50,698.47x = 69,962.61 × 28,038.72
4. Step 4: Simplify right side
   50,698.47x = 1,961,662,032.26
5. Step 5: Solve for x
   x = 1,961,662,032.26/50,698.47
6. Step 6: Final answer
   x = 38,692.73