Finding the Fourth Proportional to 12,603.84, 17,392.56 and 7,298.28

Step by Step Solution

1. Step 1: Write the proportion equation
   12,603.84 : 17,392.56 = 7,298.28 : x
2. Step 2: Convert to fraction form
   12,603.84/17,392.56 = 7,298.28/x
3. Step 3: Cross multiply
   12,603.84x = 17,392.56 × 7,298.28
4. Step 4: Simplify right side
   12,603.84x = 126,935,772.80
5. Step 5: Solve for x
   x = 126,935,772.80/12,603.84
6. Step 6: Final answer
   x = 10,071.20