Finding the Fourth Proportional to 6,128.88, 9,192.77 and 2,430.15

Step by Step Solution

1. Step 1: Write the proportion equation
   6,128.88 : 9,192.77 = 2,430.15 : x
2. Step 2: Convert to fraction form
   6,128.88/9,192.77 = 2,430.15/x
3. Step 3: Cross multiply
   6,128.88x = 9,192.77 × 2,430.15
4. Step 4: Simplify right side
   6,128.88x = 22,339,797.86
5. Step 5: Solve for x
   x = 22,339,797.86/6,128.88
6. Step 6: Final answer
   x = 3,645.00