Finding the Fourth Proportional to 9,456.86, 13,051.62 and 5,425.16

Step by Step Solution

1. Step 1: Write the proportion equation
   9,456.86 : 13,051.62 = 5,425.16 : x
2. Step 2: Convert to fraction form
   9,456.86/13,051.62 = 5,425.16/x
3. Step 3: Cross multiply
   9,456.86x = 13,051.62 × 5,425.16
4. Step 4: Simplify right side
   9,456.86x = 70,807,126.76
5. Step 5: Solve for x
   x = 70,807,126.76/9,456.86
6. Step 6: Final answer
   x = 7,487.38