Finding the Fourth Proportional to 9,360.56, 12,917.76 and 5,111.84

Step by Step Solution

1. Step 1: Write the proportion equation
   9,360.56 : 12,917.76 = 5,111.84 : x
2. Step 2: Convert to fraction form
   9,360.56/12,917.76 = 5,111.84/x
3. Step 3: Cross multiply
   9,360.56x = 12,917.76 × 5,111.84
4. Step 4: Simplify right side
   9,360.56x = 66,033,522.28
5. Step 5: Solve for x
   x = 66,033,522.28/9,360.56
6. Step 6: Final answer
   x = 7,054.44