Finding the Fourth Proportional to 9,617.84, 13,272.63 and 5,426.09

Step by Step Solution

1. Step 1: Write the proportion equation
   9,617.84 : 13,272.63 = 5,426.09 : x
2. Step 2: Convert to fraction form
   9,617.84/13,272.63 = 5,426.09/x
3. Step 3: Cross multiply
   9,617.84x = 13,272.63 × 5,426.09
4. Step 4: Simplify right side
   9,617.84x = 72,018,484.92
5. Step 5: Solve for x
   x = 72,018,484.92/9,617.84
6. Step 6: Final answer
   x = 7,488.01