Finding the Fourth Proportional to 50,109.98, 69,152.90 and 28,599.30

Step by Step Solution

1. Step 1: Write the proportion equation
   50,109.98 : 69,152.90 = 28,599.30 : x
2. Step 2: Convert to fraction form
   50,109.98/69,152.90 = 28,599.30/x
3. Step 3: Cross multiply
   50,109.98x = 69,152.90 × 28,599.30
4. Step 4: Simplify right side
   50,109.98x = 1,977,724,284.39
5. Step 5: Solve for x
   x = 1,977,724,284.39/50,109.98
6. Step 6: Final answer
   x = 39,467.67