Finding the Fourth Proportional to 57,160.39, 78,881.67 and 31,667.56

Step by Step Solution

1. Step 1: Write the proportion equation
   57,160.39 : 78,881.67 = 31,667.56 : x
2. Step 2: Convert to fraction form
   57,160.39/78,881.67 = 31,667.56/x
3. Step 3: Cross multiply
   57,160.39x = 78,881.67 × 31,667.56
4. Step 4: Simplify right side
   57,160.39x = 2,497,990,017.63
5. Step 5: Solve for x
   x = 2,497,990,017.63/57,160.39
6. Step 6: Final answer
   x = 43,701.42