Finding the Fourth Proportional to 39,401.73, 59,111.94 and 11,321.12

Step by Step Solution

1. Step 1: Write the proportion equation
   39,401.73 : 59,111.94 = 11,321.12 : x
2. Step 2: Convert to fraction form
   39,401.73/59,111.94 = 11,321.12/x
3. Step 3: Cross multiply
   39,401.73x = 59,111.94 × 11,321.12
4. Step 4: Simplify right side
   39,401.73x = 669,213,070.61
5. Step 5: Solve for x
   x = 669,213,070.61/39,401.73
6. Step 6: Final answer
   x = 16,984.36