Finding the Fourth Proportional to 9,388.77, 12,954.93 and 5,613.47

Step by Step Solution

1. Step 1: Write the proportion equation
   9,388.77 : 12,954.93 = 5,613.47 : x
2. Step 2: Convert to fraction form
   9,388.77/12,954.93 = 5,613.47/x
3. Step 3: Cross multiply
   9,388.77x = 12,954.93 × 5,613.47
4. Step 4: Simplify right side
   9,388.77x = 72,722,046.13
5. Step 5: Solve for x
   x = 72,722,046.13/9,388.77
6. Step 6: Final answer
   x = 7,745.64