Finding the Fourth Proportional to 148,144.49, 222,238.59 and 42,949.79

Step by Step Solution

1. Step 1: Write the proportion equation
   148,144.49 : 222,238.59 = 42,949.79 : x
2. Step 2: Convert to fraction form
   148,144.49/222,238.59 = 42,949.79/x
3. Step 3: Cross multiply
   148,144.49x = 222,238.59 × 42,949.79
4. Step 4: Simplify right side
   148,144.49x = 9,545,100,770.40
5. Step 5: Solve for x
   x = 9,545,100,770.40/148,144.49
6. Step 6: Final answer
   x = 64,431.02