Finding the Fourth Proportional to 9,874.30, 13,626.28 and 5,397.92

Step by Step Solution

1. Step 1: Write the proportion equation
   9,874.30 : 13,626.28 = 5,397.92 : x
2. Step 2: Convert to fraction form
   9,874.30/13,626.28 = 5,397.92/x
3. Step 3: Cross multiply
   9,874.30x = 13,626.28 × 5,397.92
4. Step 4: Simplify right side
   9,874.30x = 73,553,569.34
5. Step 5: Solve for x
   x = 73,553,569.34/9,874.30
6. Step 6: Final answer
   x = 7,448.99