Finding the Fourth Proportional to 9,336.51, 12,884.22 and 5,087.61

Step by Step Solution

1. Step 1: Write the proportion equation
   9,336.51 : 12,884.22 = 5,087.61 : x
2. Step 2: Convert to fraction form
   9,336.51/12,884.22 = 5,087.61/x
3. Step 3: Cross multiply
   9,336.51x = 12,884.22 × 5,087.61
4. Step 4: Simplify right side
   9,336.51x = 65,549,886.51
5. Step 5: Solve for x
   x = 65,549,886.51/9,336.51
6. Step 6: Final answer
   x = 7,020.81