Finding the Fourth Proportional to 39,625.72, 59,401.34 and 13,311.98

Step by Step Solution

1. Step 1: Write the proportion equation
   39,625.72 : 59,401.34 = 13,311.98 : x
2. Step 2: Convert to fraction form
   39,625.72/59,401.34 = 13,311.98/x
3. Step 3: Cross multiply
   39,625.72x = 59,401.34 × 13,311.98
4. Step 4: Simplify right side
   39,625.72x = 790,749,450.05
5. Step 5: Solve for x
   x = 790,749,450.05/39,625.72
6. Step 6: Final answer
   x = 19,955.46