Finding the Fourth Proportional to 115,581.33, 159,479.69 and 65,270.61

Step by Step Solution

1. Step 1: Write the proportion equation
   115,581.33 : 159,479.69 = 65,270.61 : x
2. Step 2: Convert to fraction form
   115,581.33/159,479.69 = 65,270.61/x
3. Step 3: Cross multiply
   115,581.33x = 159,479.69 × 65,270.61
4. Step 4: Simplify right side
   115,581.33x = 10,409,336,322.56
5. Step 5: Solve for x
   x = 10,409,336,322.56/115,581.33
6. Step 6: Final answer
   x = 90,060.71