Finding the Fourth Proportional to 139,281.50, 209,005.27 and 50,541.93

Step by Step Solution

1. Step 1: Write the proportion equation
   139,281.50 : 209,005.27 = 50,541.93 : x
2. Step 2: Convert to fraction form
   139,281.50/209,005.27 = 50,541.93/x
3. Step 3: Cross multiply
   139,281.50x = 209,005.27 × 50,541.93
4. Step 4: Simplify right side
   139,281.50x = 10,563,529,599.62
5. Step 5: Solve for x
   x = 10,563,529,599.62/139,281.50
6. Step 6: Final answer
   x = 75,843.02