Finding the Fourth Proportional to 9,360.63, 12,917.61 and 5,168.88

Step by Step Solution

1. Step 1: Write the proportion equation
   9,360.63 : 12,917.61 = 5,168.88 : x
2. Step 2: Convert to fraction form
   9,360.63/12,917.61 = 5,168.88/x
3. Step 3: Cross multiply
   9,360.63x = 12,917.61 × 5,168.88
4. Step 4: Simplify right side
   9,360.63x = 66,769,575.98
5. Step 5: Solve for x
   x = 66,769,575.98/9,360.63
6. Step 6: Final answer
   x = 7,133.02