Finding the Fourth Proportional to 50,212.71, 69,299.69 and 28,991.93

Step by Step Solution

1. Step 1: Write the proportion equation
   50,212.71 : 69,299.69 = 28,991.93 : x
2. Step 2: Convert to fraction form
   50,212.71/69,299.69 = 28,991.93/x
3. Step 3: Cross multiply
   50,212.71x = 69,299.69 × 28,991.93
4. Step 4: Simplify right side
   50,212.71x = 2,009,131,270.04
5. Step 5: Solve for x
   x = 2,009,131,270.04/50,212.71
6. Step 6: Final answer
   x = 40,012.40