Finding the Fourth Proportional to 12,603.76, 17,392.82 and 6,938.52

Step by Step Solution

1. Step 1: Write the proportion equation
   12,603.76 : 17,392.82 = 6,938.52 : x
2. Step 2: Convert to fraction form
   12,603.76/17,392.82 = 6,938.52/x
3. Step 3: Cross multiply
   12,603.76x = 17,392.82 × 6,938.52
4. Step 4: Simplify right side
   12,603.76x = 120,680,429.43
5. Step 5: Solve for x
   x = 120,680,429.43/12,603.76
6. Step 6: Final answer
   x = 9,574.95