Finding the Fourth Proportional to 115,065, 158,707.89 and 76,805.25

Step by Step Solution

1. Step 1: Write the proportion equation
   115,065 : 158,707.89 = 76,805.25 : x
2. Step 2: Convert to fraction form
   115,065/158,707.89 = 76,805.25/x
3. Step 3: Cross multiply
   115,065x = 158,707.89 × 76,805.25
4. Step 4: Simplify right side
   115,065x = 12,189,599,168.42
5. Step 5: Solve for x
   x = 12,189,599,168.42/115,065
6. Step 6: Final answer
   x = 105,936.64