Finding the Fourth Proportional to 43,144.47, 64,658.39 and 38,012.31

Step by Step Solution

1. Step 1: Write the proportion equation
   43,144.47 : 64,658.39 = 38,012.31 : x
2. Step 2: Convert to fraction form
   43,144.47/64,658.39 = 38,012.31/x
3. Step 3: Cross multiply
   43,144.47x = 64,658.39 × 38,012.31
4. Step 4: Simplify right side
   43,144.47x = 2,457,814,574.72
5. Step 5: Solve for x
   x = 2,457,814,574.72/43,144.47
6. Step 6: Final answer
   x = 56,967.08