Finding the Fourth Proportional to 3,985.67, 5,499.82 and 3,042.07

Step by Step Solution

1. Step 1: Write the proportion equation
   3,985.67 : 5,499.82 = 3,042.07 : x
2. Step 2: Convert to fraction form
   3,985.67/5,499.82 = 3,042.07/x
3. Step 3: Cross multiply
   3,985.67x = 5,499.82 × 3,042.07
4. Step 4: Simplify right side
   3,985.67x = 16,730,837.43
5. Step 5: Solve for x
   x = 16,730,837.43/3,985.67
6. Step 6: Final answer
   x = 4,197.75