Finding the Fourth Proportional to 5,103.10, 7,654.45 and 1,405.25

Step by Step Solution

1. Step 1: Write the proportion equation
   5,103.10 : 7,654.45 = 1,405.25 : x
2. Step 2: Convert to fraction form
   5,103.10/7,654.45 = 1,405.25/x
3. Step 3: Cross multiply
   5,103.10x = 7,654.45 × 1,405.25
4. Step 4: Simplify right side
   5,103.10x = 10,756,415.86
5. Step 5: Solve for x
   x = 10,756,415.86/5,103.10
6. Step 6: Final answer
   x = 2,107.82