Finding the Fourth Proportional to 67,408.38, 93,017.25 and 65,143.62

Step by Step Solution

1. Step 1: Write the proportion equation
   67,408.38 : 93,017.25 = 65,143.62 : x
2. Step 2: Convert to fraction form
   67,408.38/93,017.25 = 65,143.62/x
3. Step 3: Cross multiply
   67,408.38x = 93,017.25 × 65,143.62
4. Step 4: Simplify right side
   67,408.38x = 6,059,480,387.45
5. Step 5: Solve for x
   x = 6,059,480,387.45/67,408.38
6. Step 6: Final answer
   x = 89,892.09