Finding the Fourth Proportional to 38,443, 57,690.15 and 13,483.03

Step by Step Solution

1. Step 1: Write the proportion equation
   38,443 : 57,690.15 = 13,483.03 : x
2. Step 2: Convert to fraction form
   38,443/57,690.15 = 13,483.03/x
3. Step 3: Cross multiply
   38,443x = 57,690.15 × 13,483.03
4. Step 4: Simplify right side
   38,443x = 777,838,023.15
5. Step 5: Solve for x
   x = 777,838,023.15/38,443
6. Step 6: Final answer
   x = 20,233.54