Finding the Fourth Proportional to 13,315.48, 19,983.54 and 5,003.05

Step by Step Solution

1. Step 1: Write the proportion equation
   13,315.48 : 19,983.54 = 5,003.05 : x
2. Step 2: Convert to fraction form
   13,315.48/19,983.54 = 5,003.05/x
3. Step 3: Cross multiply
   13,315.48x = 19,983.54 × 5,003.05
4. Step 4: Simplify right side
   13,315.48x = 99,978,649.80
5. Step 5: Solve for x
   x = 99,978,649.80/13,315.48
6. Step 6: Final answer
   x = 7,508.45