Finding the Fourth Proportional to 39,408.96, 59,100.33 and 12,748.62

Step by Step Solution

1. Step 1: Write the proportion equation
   39,408.96 : 59,100.33 = 12,748.62 : x
2. Step 2: Convert to fraction form
   39,408.96/59,100.33 = 12,748.62/x
3. Step 3: Cross multiply
   39,408.96x = 59,100.33 × 12,748.62
4. Step 4: Simplify right side
   39,408.96x = 753,447,649.04
5. Step 5: Solve for x
   x = 753,447,649.04/39,408.96
6. Step 6: Final answer
   x = 19,118.69