Finding the Fourth Proportional to 9,303.18, 12,838.28 and 5,111.42

Step by Step Solution

1. Step 1: Write the proportion equation
   9,303.18 : 12,838.28 = 5,111.42 : x
2. Step 2: Convert to fraction form
   9,303.18/12,838.28 = 5,111.42/x
3. Step 3: Cross multiply
   9,303.18x = 12,838.28 × 5,111.42
4. Step 4: Simplify right side
   9,303.18x = 65,621,841.16
5. Step 5: Solve for x
   x = 65,621,841.16/9,303.18
6. Step 6: Final answer
   x = 7,053.70