Finding the Fourth Proportional to 115,018.61, 158,768.98 and 67,287.33

Step by Step Solution

1. Step 1: Write the proportion equation
   115,018.61 : 158,768.98 = 67,287.33 : x
2. Step 2: Convert to fraction form
   115,018.61/158,768.98 = 67,287.33/x
3. Step 3: Cross multiply
   115,018.61x = 158,768.98 × 67,287.33
4. Step 4: Simplify right side
   115,018.61x = 10,683,140,582.81
5. Step 5: Solve for x
   x = 10,683,140,582.81/115,018.61
6. Step 6: Final answer
   x = 92,881.85