Finding the Fourth Proportional to 50,185.47, 69,253.61 and 28,971.57

Step by Step Solution

1. Step 1: Write the proportion equation
   50,185.47 : 69,253.61 = 28,971.57 : x
2. Step 2: Convert to fraction form
   50,185.47/69,253.61 = 28,971.57/x
3. Step 3: Cross multiply
   50,185.47x = 69,253.61 × 28,971.57
4. Step 4: Simplify right side
   50,185.47x = 2,006,385,665.01
5. Step 5: Solve for x
   x = 2,006,385,665.01/50,185.47
6. Step 6: Final answer
   x = 39,979.41