Finding the Fourth Proportional to 9,940.10, 14,897.19 and 4,090.10

Step by Step Solution

1. Step 1: Write the proportion equation
   9,940.10 : 14,897.19 = 4,090.10 : x
2. Step 2: Convert to fraction form
   9,940.10/14,897.19 = 4,090.10/x
3. Step 3: Cross multiply
   9,940.10x = 14,897.19 × 4,090.10
4. Step 4: Simplify right side
   9,940.10x = 60,930,996.82
5. Step 5: Solve for x
   x = 60,930,996.82/9,940.10
6. Step 6: Final answer
   x = 6,129.82