Finding the Fourth Proportional to 38,676.50, 58,019.34 and 13,719.03

Step by Step Solution

1. Step 1: Write the proportion equation
   38,676.50 : 58,019.34 = 13,719.03 : x
2. Step 2: Convert to fraction form
   38,676.50/58,019.34 = 13,719.03/x
3. Step 3: Cross multiply
   38,676.50x = 58,019.34 × 13,719.03
4. Step 4: Simplify right side
   38,676.50x = 795,969,066.04
5. Step 5: Solve for x
   x = 795,969,066.04/38,676.50
6. Step 6: Final answer
   x = 20,580.17