Finding the Fourth Proportional to 115,282, 159,089.16 and 64,982.80

Step by Step Solution

1. Step 1: Write the proportion equation
   115,282 : 159,089.16 = 64,982.80 : x
2. Step 2: Convert to fraction form
   115,282/159,089.16 = 64,982.80/x
3. Step 3: Cross multiply
   115,282x = 159,089.16 × 64,982.80
4. Step 4: Simplify right side
   115,282x = 10,338,059,066.45
5. Step 5: Solve for x
   x = 10,338,059,066.45/115,282
6. Step 6: Final answer
   x = 89,676.26