Finding the Fourth Proportional to 13,006.41, 19,500.78 and 5,103.99

Step by Step Solution

1. Step 1: Write the proportion equation
   13,006.41 : 19,500.78 = 5,103.99 : x
2. Step 2: Convert to fraction form
   13,006.41/19,500.78 = 5,103.99/x
3. Step 3: Cross multiply
   13,006.41x = 19,500.78 × 5,103.99
4. Step 4: Simplify right side
   13,006.41x = 99,531,786.11
5. Step 5: Solve for x
   x = 99,531,786.11/13,006.41
6. Step 6: Final answer
   x = 7,652.52