Finding the Fourth Proportional to 9,303.51, 12,838.59 and 5,111.76

Step by Step Solution

1. Step 1: Write the proportion equation
   9,303.51 : 12,838.59 = 5,111.76 : x
2. Step 2: Convert to fraction form
   9,303.51/12,838.59 = 5,111.76/x
3. Step 3: Cross multiply
   9,303.51x = 12,838.59 × 5,111.76
4. Step 4: Simplify right side
   9,303.51x = 65,627,790.82
5. Step 5: Solve for x
   x = 65,627,790.82/9,303.51
6. Step 6: Final answer
   x = 7,054.09