Finding the Fourth Proportional to 628,443.94, 942,813.54 and 207,719.83

Step by Step Solution

1. Step 1: Write the proportion equation
   628,443.94 : 942,813.54 = 207,719.83 : x
2. Step 2: Convert to fraction form
   628,443.94/942,813.54 = 207,719.83/x
3. Step 3: Cross multiply
   628,443.94x = 942,813.54 × 207,719.83
4. Step 4: Simplify right side
   628,443.94x = 195,841,068,250.50
5. Step 5: Solve for x
   x = 195,841,068,250.50/628,443.94
6. Step 6: Final answer
   x = 311,628.54