Finding the Fourth Proportional to 57,149.69, 78,863.83 and 31,654.33

Step by Step Solution

1. Step 1: Write the proportion equation
   57,149.69 : 78,863.83 = 31,654.33 : x
2. Step 2: Convert to fraction form
   57,149.69/78,863.83 = 31,654.33/x
3. Step 3: Cross multiply
   57,149.69x = 78,863.83 × 31,654.33
4. Step 4: Simplify right side
   57,149.69x = 2,496,381,423.59
5. Step 5: Solve for x
   x = 2,496,381,423.59/57,149.69
6. Step 6: Final answer
   x = 43,681.46