Finding the Fourth Proportional to 12,635.84, 17,442.72 and 9,004.16

Step by Step Solution

1. Step 1: Write the proportion equation
   12,635.84 : 17,442.72 = 9,004.16 : x
2. Step 2: Convert to fraction form
   12,635.84/17,442.72 = 9,004.16/x
3. Step 3: Cross multiply
   12,635.84x = 17,442.72 × 9,004.16
4. Step 4: Simplify right side
   12,635.84x = 157,057,041.72
5. Step 5: Solve for x
   x = 157,057,041.72/12,635.84
6. Step 6: Final answer
   x = 12,429.49