Finding the Fourth Proportional to 115,167.23, 158,876.45 and 67,391

Step by Step Solution

1. Step 1: Write the proportion equation
   115,167.23 : 158,876.45 = 67,391 : x
2. Step 2: Convert to fraction form
   115,167.23/158,876.45 = 67,391/x
3. Step 3: Cross multiply
   115,167.23x = 158,876.45 × 67,391
4. Step 4: Simplify right side
   115,167.23x = 10,706,843,010.43
5. Step 5: Solve for x
   x = 10,706,843,010.43/115,167.23
6. Step 6: Final answer
   x = 92,967.79