Finding the Fourth Proportional to 178,699.94, 268,101.86 and 72,028.72

Step by Step Solution

1. Step 1: Write the proportion equation
   178,699.94 : 268,101.86 = 72,028.72 : x
2. Step 2: Convert to fraction form
   178,699.94/268,101.86 = 72,028.72/x
3. Step 3: Cross multiply
   178,699.94x = 268,101.86 × 72,028.72
4. Step 4: Simplify right side
   178,699.94x = 19,311,033,805.42
5. Step 5: Solve for x
   x = 19,311,033,805.42/178,699.94
6. Step 6: Final answer
   x = 108,064.02