Finding the Fourth Proportional to 42,603.55, 63,834.69 and 25,913.09

Step by Step Solution

1. Step 1: Write the proportion equation
   42,603.55 : 63,834.69 = 25,913.09 : x
2. Step 2: Convert to fraction form
   42,603.55/63,834.69 = 25,913.09/x
3. Step 3: Cross multiply
   42,603.55x = 63,834.69 × 25,913.09
4. Step 4: Simplify right side
   42,603.55x = 1,654,154,067.09
5. Step 5: Solve for x
   x = 1,654,154,067.09/42,603.55
6. Step 6: Final answer
   x = 38,826.67