Finding the Fourth Proportional to 9,708.86, 13,398.41 and 5,459.81

Step by Step Solution

1. Step 1: Write the proportion equation
   9,708.86 : 13,398.41 = 5,459.81 : x
2. Step 2: Convert to fraction form
   9,708.86/13,398.41 = 5,459.81/x
3. Step 3: Cross multiply
   9,708.86x = 13,398.41 × 5,459.81
4. Step 4: Simplify right side
   9,708.86x = 73,152,719.56
5. Step 5: Solve for x
   x = 73,152,719.56/9,708.86
6. Step 6: Final answer
   x = 7,534.63