Finding the Fourth Proportional to 154,608, 231,908.71 and 42,288.22

Step by Step Solution

1. Step 1: Write the proportion equation
   154,608 : 231,908.71 = 42,288.22 : x
2. Step 2: Convert to fraction form
   154,608/231,908.71 = 42,288.22/x
3. Step 3: Cross multiply
   154,608x = 231,908.71 × 42,288.22
4. Step 4: Simplify right side
   154,608x = 9,807,006,548.40
5. Step 5: Solve for x
   x = 9,807,006,548.40/154,608
6. Step 6: Final answer
   x = 63,431.43