Finding the Fourth Proportional to 7,929.47, 11,897.90 and 3,549.89

Step by Step Solution

1. Step 1: Write the proportion equation
   7,929.47 : 11,897.90 = 3,549.89 : x
2. Step 2: Convert to fraction form
   7,929.47/11,897.90 = 3,549.89/x
3. Step 3: Cross multiply
   7,929.47x = 11,897.90 × 3,549.89
4. Step 4: Simplify right side
   7,929.47x = 42,236,218.48
5. Step 5: Solve for x
   x = 42,236,218.48/7,929.47
6. Step 6: Final answer
   x = 5,326.49