Finding the Fourth Proportional to 9,303.53, 12,838.81 and 5,111.75

Step by Step Solution

1. Step 1: Write the proportion equation
   9,303.53 : 12,838.81 = 5,111.75 : x
2. Step 2: Convert to fraction form
   9,303.53/12,838.81 = 5,111.75/x
3. Step 3: Cross multiply
   9,303.53x = 12,838.81 × 5,111.75
4. Step 4: Simplify right side
   9,303.53x = 65,628,787.02
5. Step 5: Solve for x
   x = 65,628,787.02/9,303.53
6. Step 6: Final answer
   x = 7,054.18