Finding the Fourth Proportional to 57,160.78, 78,882.43 and 31,667.69

Step by Step Solution

1. Step 1: Write the proportion equation
   57,160.78 : 78,882.43 = 31,667.69 : x
2. Step 2: Convert to fraction form
   57,160.78/78,882.43 = 31,667.69/x
3. Step 3: Cross multiply
   57,160.78x = 78,882.43 × 31,667.69
4. Step 4: Simplify right side
   57,160.78x = 2,498,024,073.39
5. Step 5: Solve for x
   x = 2,498,024,073.39/57,160.78
6. Step 6: Final answer
   x = 43,701.71