Finding the Fourth Proportional to 139,037.33, 208,555.91 and 50,270.07

Step by Step Solution

1. Step 1: Write the proportion equation
   139,037.33 : 208,555.91 = 50,270.07 : x
2. Step 2: Convert to fraction form
   139,037.33/208,555.91 = 50,270.07/x
3. Step 3: Cross multiply
   139,037.33x = 208,555.91 × 50,270.07
4. Step 4: Simplify right side
   139,037.33x = 10,484,121,025.16
5. Step 5: Solve for x
   x = 10,484,121,025.16/139,037.33
6. Step 6: Final answer
   x = 75,405.08