Finding the Fourth Proportional to 117,401.59, 162,010.52 and 65,718.67

Step by Step Solution

1. Step 1: Write the proportion equation
   117,401.59 : 162,010.52 = 65,718.67 : x
2. Step 2: Convert to fraction form
   117,401.59/162,010.52 = 65,718.67/x
3. Step 3: Cross multiply
   117,401.59x = 162,010.52 × 65,718.67
4. Step 4: Simplify right side
   117,401.59x = 10,647,115,900.41
5. Step 5: Solve for x
   x = 10,647,115,900.41/117,401.59
6. Step 6: Final answer
   x = 90,689.71