Finding the Fourth Proportional to 11,421.15, 17,140.37 and 4,851.94

Step by Step Solution

1. Step 1: Write the proportion equation
   11,421.15 : 17,140.37 = 4,851.94 : x
2. Step 2: Convert to fraction form
   11,421.15/17,140.37 = 4,851.94/x
3. Step 3: Cross multiply
   11,421.15x = 17,140.37 × 4,851.94
4. Step 4: Simplify right side
   11,421.15x = 83,164,046.82
5. Step 5: Solve for x
   x = 83,164,046.82/11,421.15
6. Step 6: Final answer
   x = 7,281.58