Finding the Fourth Proportional to 9,360.35, 12,917.33 and 5,111.49

Step by Step Solution

1. Step 1: Write the proportion equation
   9,360.35 : 12,917.33 = 5,111.49 : x
2. Step 2: Convert to fraction form
   9,360.35/12,917.33 = 5,111.49/x
3. Step 3: Cross multiply
   9,360.35x = 12,917.33 × 5,111.49
4. Step 4: Simplify right side
   9,360.35x = 66,026,777.56
5. Step 5: Solve for x
   x = 66,026,777.56/9,360.35
6. Step 6: Final answer
   x = 7,053.88