Finding the Fourth Proportional to 9,513.88, 13,130.13 and 5,480.84

Step by Step Solution

1. Step 1: Write the proportion equation
   9,513.88 : 13,130.13 = 5,480.84 : x
2. Step 2: Convert to fraction form
   9,513.88/13,130.13 = 5,480.84/x
3. Step 3: Cross multiply
   9,513.88x = 13,130.13 × 5,480.84
4. Step 4: Simplify right side
   9,513.88x = 71,964,141.71
5. Step 5: Solve for x
   x = 71,964,141.71/9,513.88
6. Step 6: Final answer
   x = 7,564.12