Finding the Fourth Proportional to 115,500.95, 159,389.61 and 64,514.39

Step by Step Solution

1. Step 1: Write the proportion equation
   115,500.95 : 159,389.61 = 64,514.39 : x
2. Step 2: Convert to fraction form
   115,500.95/159,389.61 = 64,514.39/x
3. Step 3: Cross multiply
   115,500.95x = 159,389.61 × 64,514.39
4. Step 4: Simplify right side
   115,500.95x = 10,282,923,859.96
5. Step 5: Solve for x
   x = 10,282,923,859.96/115,500.95
6. Step 6: Final answer
   x = 89,028.91