Finding the Fourth Proportional to 86,498.58, 119,348.69 and 65,040.01

Step by Step Solution

1. Step 1: Write the proportion equation
   86,498.58 : 119,348.69 = 65,040.01 : x
2. Step 2: Convert to fraction form
   86,498.58/119,348.69 = 65,040.01/x
3. Step 3: Cross multiply
   86,498.58x = 119,348.69 × 65,040.01
4. Step 4: Simplify right side
   86,498.58x = 7,762,440,404.70
5. Step 5: Solve for x
   x = 7,762,440,404.70/86,498.58
6. Step 6: Final answer
   x = 89,740.66