Finding the Fourth Proportional to 41,385, 62,083.98 and 13,689.48

Step by Step Solution

1. Step 1: Write the proportion equation
   41,385 : 62,083.98 = 13,689.48 : x
2. Step 2: Convert to fraction form
   41,385/62,083.98 = 13,689.48/x
3. Step 3: Cross multiply
   41,385x = 62,083.98 × 13,689.48
4. Step 4: Simplify right side
   41,385x = 849,897,402.53
5. Step 5: Solve for x
   x = 849,897,402.53/41,385
6. Step 6: Final answer
   x = 20,536.36