Finding the Fourth Proportional to 139,534.52, 209,433.30 and 50,873.72

Step by Step Solution

1. Step 1: Write the proportion equation
   139,534.52 : 209,433.30 = 50,873.72 : x
2. Step 2: Convert to fraction form
   139,534.52/209,433.30 = 50,873.72/x
3. Step 3: Cross multiply
   139,534.52x = 209,433.30 × 50,873.72
4. Step 4: Simplify right side
   139,534.52x = 10,654,651,062.88
5. Step 5: Solve for x
   x = 10,654,651,062.88/139,534.52
6. Step 6: Final answer
   x = 76,358.53