Finding the Fourth Proportional to 9,364.92, 12,922.90 and 5,386.04

Step by Step Solution

1. Step 1: Write the proportion equation
   9,364.92 : 12,922.90 = 5,386.04 : x
2. Step 2: Convert to fraction form
   9,364.92/12,922.90 = 5,386.04/x
3. Step 3: Cross multiply
   9,364.92x = 12,922.90 × 5,386.04
4. Step 4: Simplify right side
   9,364.92x = 69,603,256.32
5. Step 5: Solve for x
   x = 69,603,256.32/9,364.92
6. Step 6: Final answer
   x = 7,432.34