Finding the Fourth Proportional to 76,950.10, 115,401.15 and 30,217.30

Step by Step Solution

1. Step 1: Write the proportion equation
   76,950.10 : 115,401.15 = 30,217.30 : x
2. Step 2: Convert to fraction form
   76,950.10/115,401.15 = 30,217.30/x
3. Step 3: Cross multiply
   76,950.10x = 115,401.15 × 30,217.30
4. Step 4: Simplify right side
   76,950.10x = 3,487,111,169.90
5. Step 5: Solve for x
   x = 3,487,111,169.90/76,950.10
6. Step 6: Final answer
   x = 45,316.53