Finding the Fourth Proportional to 50,491.55, 69,675.39 and 28,976.33

Step by Step Solution

1. Step 1: Write the proportion equation
   50,491.55 : 69,675.39 = 28,976.33 : x
2. Step 2: Convert to fraction form
   50,491.55/69,675.39 = 28,976.33/x
3. Step 3: Cross multiply
   50,491.55x = 69,675.39 × 28,976.33
4. Step 4: Simplify right side
   50,491.55x = 2,018,937,267.71
5. Step 5: Solve for x
   x = 2,018,937,267.71/50,491.55
6. Step 6: Final answer
   x = 39,985.64