Finding the Fourth Proportional to 161,107.29, 241,642.38 and 42,787.89

Step by Step Solution

1. Step 1: Write the proportion equation
   161,107.29 : 241,642.38 = 42,787.89 : x
2. Step 2: Convert to fraction form
   161,107.29/241,642.38 = 42,787.89/x
3. Step 3: Cross multiply
   161,107.29x = 241,642.38 × 42,787.89
4. Step 4: Simplify right side
   161,107.29x = 10,339,367,574.78
5. Step 5: Solve for x
   x = 10,339,367,574.78/161,107.29
6. Step 6: Final answer
   x = 64,176.91