Finding the Fourth Proportional to 9,363.48, 12,920.22 and 5,384.76

Step by Step Solution

1. Step 1: Write the proportion equation
   9,363.48 : 12,920.22 = 5,384.76 : x
2. Step 2: Convert to fraction form
   9,363.48/12,920.22 = 5,384.76/x
3. Step 3: Cross multiply
   9,363.48x = 12,920.22 × 5,384.76
4. Step 4: Simplify right side
   9,363.48x = 69,572,283.85
5. Step 5: Solve for x
   x = 69,572,283.85/9,363.48
6. Step 6: Final answer
   x = 7,430.17