Finding the Fourth Proportional to 155,429.67, 233,144.55 and 43,138.16

Step by Step Solution

1. Step 1: Write the proportion equation
   155,429.67 : 233,144.55 = 43,138.16 : x
2. Step 2: Convert to fraction form
   155,429.67/233,144.55 = 43,138.16/x
3. Step 3: Cross multiply
   155,429.67x = 233,144.55 × 43,138.16
4. Step 4: Simplify right side
   155,429.67x = 10,057,425,735.31
5. Step 5: Solve for x
   x = 10,057,425,735.31/155,429.67
6. Step 6: Final answer
   x = 64,707.24