Finding the Fourth Proportional to 199,443.73, 275,333.88 and 154,019.74

Step by Step Solution

1. Step 1: Write the proportion equation
   199,443.73 : 275,333.88 = 154,019.74 : x
2. Step 2: Convert to fraction form
   199,443.73/275,333.88 = 154,019.74/x
3. Step 3: Cross multiply
   199,443.73x = 275,333.88 × 154,019.74
4. Step 4: Simplify right side
   199,443.73x = 42,406,852,610.79
5. Step 5: Solve for x
   x = 42,406,852,610.79/199,443.73
6. Step 6: Final answer
   x = 212,625.65