Finding the Fourth Proportional to 9,414.86, 12,992.56 and 5,435.96

Step by Step Solution

1. Step 1: Write the proportion equation
   9,414.86 : 12,992.56 = 5,435.96 : x
2. Step 2: Convert to fraction form
   9,414.86/12,992.56 = 5,435.96/x
3. Step 3: Cross multiply
   9,414.86x = 12,992.56 × 5,435.96
4. Step 4: Simplify right side
   9,414.86x = 70,626,957.90
5. Step 5: Solve for x
   x = 70,626,957.90/9,414.86
6. Step 6: Final answer
   x = 7,501.65