Finding the Fourth Proportional to 9,707.86, 13,396.72 and 5,459.63

Step by Step Solution

1. Step 1: Write the proportion equation
   9,707.86 : 13,396.72 = 5,459.63 : x
2. Step 2: Convert to fraction form
   9,707.86/13,396.72 = 5,459.63/x
3. Step 3: Cross multiply
   9,707.86x = 13,396.72 × 5,459.63
4. Step 4: Simplify right side
   9,707.86x = 73,141,134.41
5. Step 5: Solve for x
   x = 73,141,134.41/9,707.86
6. Step 6: Final answer
   x = 7,534.22