Finding the Fourth Proportional to 139,568.60, 209,434.92 and 50,827.43

Step by Step Solution

1. Step 1: Write the proportion equation
   139,568.60 : 209,434.92 = 50,827.43 : x
2. Step 2: Convert to fraction form
   139,568.60/209,434.92 = 50,827.43/x
3. Step 3: Cross multiply
   139,568.60x = 209,434.92 × 50,827.43
4. Step 4: Simplify right side
   139,568.60x = 10,645,039,068.84
5. Step 5: Solve for x
   x = 10,645,039,068.84/139,568.60
6. Step 6: Final answer
   x = 76,271.02