Finding the Fourth Proportional to 148,142.49, 222,235.59 and 42,947.79

Step by Step Solution

1. Step 1: Write the proportion equation
   148,142.49 : 222,235.59 = 42,947.79 : x
2. Step 2: Convert to fraction form
   148,142.49/222,235.59 = 42,947.79/x
3. Step 3: Cross multiply
   148,142.49x = 222,235.59 × 42,947.79
4. Step 4: Simplify right side
   148,142.49x = 9,544,527,449.85
5. Step 5: Solve for x
   x = 9,544,527,449.85/148,142.49
6. Step 6: Final answer
   x = 64,428.02