Finding the Fourth Proportional to 139,205.68, 208,806.72 and 34,025.56

Step by Step Solution

1. Step 1: Write the proportion equation
   139,205.68 : 208,806.72 = 34,025.56 : x
2. Step 2: Convert to fraction form
   139,205.68/208,806.72 = 34,025.56/x
3. Step 3: Cross multiply
   139,205.68x = 208,806.72 × 34,025.56
4. Step 4: Simplify right side
   139,205.68x = 7,104,765,579.76
5. Step 5: Solve for x
   x = 7,104,765,579.76/139,205.68
6. Step 6: Final answer
   x = 51,037.90