Finding the Fourth Proportional to 12,339.11, 17,024.06 and 7,554.05

Step by Step Solution

1. Step 1: Write the proportion equation
   12,339.11 : 17,024.06 = 7,554.05 : x
2. Step 2: Convert to fraction form
   12,339.11/17,024.06 = 7,554.05/x
3. Step 3: Cross multiply
   12,339.11x = 17,024.06 × 7,554.05
4. Step 4: Simplify right side
   12,339.11x = 128,600,661.89
5. Step 5: Solve for x
   x = 128,600,661.89/12,339.11
6. Step 6: Final answer
   x = 10,422.20