Finding the Fourth Proportional to 9,078.27, 12,528.32 and 5,100.09

Step by Step Solution

1. Step 1: Write the proportion equation
   9,078.27 : 12,528.32 = 5,100.09 : x
2. Step 2: Convert to fraction form
   9,078.27/12,528.32 = 5,100.09/x
3. Step 3: Cross multiply
   9,078.27x = 12,528.32 × 5,100.09
4. Step 4: Simplify right side
   9,078.27x = 63,895,534.05
5. Step 5: Solve for x
   x = 63,895,534.05/9,078.27
6. Step 6: Final answer
   x = 7,038.29