Finding the Fourth Proportional to 72,691.27, 109,064.25 and 25,309.91

Step by Step Solution

1. Step 1: Write the proportion equation
   72,691.27 : 109,064.25 = 25,309.91 : x
2. Step 2: Convert to fraction form
   72,691.27/109,064.25 = 25,309.91/x
3. Step 3: Cross multiply
   72,691.27x = 109,064.25 × 25,309.91
4. Step 4: Simplify right side
   72,691.27x = 2,760,406,624.38
5. Step 5: Solve for x
   x = 2,760,406,624.38/72,691.27
6. Step 6: Final answer
   x = 37,974.39