Finding the Fourth Proportional to 115,608.89, 159,527.43 and 65,307.89

Step by Step Solution

1. Step 1: Write the proportion equation
   115,608.89 : 159,527.43 = 65,307.89 : x
2. Step 2: Convert to fraction form
   115,608.89/159,527.43 = 65,307.89/x
3. Step 3: Cross multiply
   115,608.89x = 159,527.43 × 65,307.89
4. Step 4: Simplify right side
   115,608.89x = 10,418,400,249.24
5. Step 5: Solve for x
   x = 10,418,400,249.24/115,608.89
6. Step 6: Final answer
   x = 90,117.64