Finding the Fourth Proportional to 39,789.89, 54,900.11 and 25,625.69

Step by Step Solution

1. Step 1: Write the proportion equation
   39,789.89 : 54,900.11 = 25,625.69 : x
2. Step 2: Convert to fraction form
   39,789.89/54,900.11 = 25,625.69/x
3. Step 3: Cross multiply
   39,789.89x = 54,900.11 × 25,625.69
4. Step 4: Simplify right side
   39,789.89x = 1,406,853,199.83
5. Step 5: Solve for x
   x = 1,406,853,199.83/39,789.89
6. Step 6: Final answer
   x = 35,357.05