Finding the Fourth Proportional to 9,387.84, 12,956.51 and 5,300.49

Step by Step Solution

1. Step 1: Write the proportion equation
   9,387.84 : 12,956.51 = 5,300.49 : x
2. Step 2: Convert to fraction form
   9,387.84/12,956.51 = 5,300.49/x
3. Step 3: Cross multiply
   9,387.84x = 12,956.51 × 5,300.49
4. Step 4: Simplify right side
   9,387.84x = 68,675,851.69
5. Step 5: Solve for x
   x = 68,675,851.69/9,387.84
6. Step 6: Final answer
   x = 7,315.41