Finding the Fourth Proportional to 11,897.30, 17,846.24 and 3,999.93

Step by Step Solution

1. Step 1: Write the proportion equation
   11,897.30 : 17,846.24 = 3,999.93 : x
2. Step 2: Convert to fraction form
   11,897.30/17,846.24 = 3,999.93/x
3. Step 3: Cross multiply
   11,897.30x = 17,846.24 × 3,999.93
4. Step 4: Simplify right side
   11,897.30x = 71,383,710.76
5. Step 5: Solve for x
   x = 71,383,710.76/11,897.30
6. Step 6: Final answer
   x = 5,999.99