Finding the Fourth Proportional to 139,283.50, 209,008.27 and 50,543.93

Step by Step Solution

1. Step 1: Write the proportion equation
   139,283.50 : 209,008.27 = 50,543.93 : x
2. Step 2: Convert to fraction form
   139,283.50/209,008.27 = 50,543.93/x
3. Step 3: Cross multiply
   139,283.50x = 209,008.27 × 50,543.93
4. Step 4: Simplify right side
   139,283.50x = 10,564,099,368.30
5. Step 5: Solve for x
   x = 10,564,099,368.30/139,283.50
6. Step 6: Final answer
   x = 75,846.02