Finding the Fourth Proportional to 13,003.57, 19,503.33 and 4,238.43

Step by Step Solution

1. Step 1: Write the proportion equation
   13,003.57 : 19,503.33 = 4,238.43 : x
2. Step 2: Convert to fraction form
   13,003.57/19,503.33 = 4,238.43/x
3. Step 3: Cross multiply
   13,003.57x = 19,503.33 × 4,238.43
4. Step 4: Simplify right side
   13,003.57x = 82,663,498.97
5. Step 5: Solve for x
   x = 82,663,498.97/13,003.57
6. Step 6: Final answer
   x = 6,356.98