Finding the Fourth Proportional to 9,494.51, 13,101.54 and 5,515.57

Step by Step Solution

1. Step 1: Write the proportion equation
   9,494.51 : 13,101.54 = 5,515.57 : x
2. Step 2: Convert to fraction form
   9,494.51/13,101.54 = 5,515.57/x
3. Step 3: Cross multiply
   9,494.51x = 13,101.54 × 5,515.57
4. Step 4: Simplify right side
   9,494.51x = 72,262,395.47
5. Step 5: Solve for x
   x = 72,262,395.47/9,494.51
6. Step 6: Final answer
   x = 7,610.97