Finding the Fourth Proportional to 13,005.54, 19,499.47 and 5,103.10

Step by Step Solution

1. Step 1: Write the proportion equation
   13,005.54 : 19,499.47 = 5,103.10 : x
2. Step 2: Convert to fraction form
   13,005.54/19,499.47 = 5,103.10/x
3. Step 3: Cross multiply
   13,005.54x = 19,499.47 × 5,103.10
4. Step 4: Simplify right side
   13,005.54x = 99,507,745.36
5. Step 5: Solve for x
   x = 99,507,745.36/13,005.54
6. Step 6: Final answer
   x = 7,651.18