Finding the Fourth Proportional to 9,414.51, 12,992.18 and 5,435.97

Step by Step Solution

1. Step 1: Write the proportion equation
   9,414.51 : 12,992.18 = 5,435.97 : x
2. Step 2: Convert to fraction form
   9,414.51/12,992.18 = 5,435.97/x
3. Step 3: Cross multiply
   9,414.51x = 12,992.18 × 5,435.97
4. Step 4: Simplify right side
   9,414.51x = 70,625,073.53
5. Step 5: Solve for x
   x = 70,625,073.53/9,414.51
6. Step 6: Final answer
   x = 7,501.73