Finding the Fourth Proportional to 307,158.38, 460,744.86 and 82,519.10

Step by Step Solution

1. Step 1: Write the proportion equation
   307,158.38 : 460,744.86 = 82,519.10 : x
2. Step 2: Convert to fraction form
   307,158.38/460,744.86 = 82,519.10/x
3. Step 3: Cross multiply
   307,158.38x = 460,744.86 × 82,519.10
4. Step 4: Simplify right side
   307,158.38x = 38,020,251,176.83
5. Step 5: Solve for x
   x = 38,020,251,176.83/307,158.38
6. Step 6: Final answer
   x = 123,780.61