Finding the Fourth Proportional to 9,477.34, 13,077.36 and 5,389

Step by Step Solution

1. Step 1: Write the proportion equation
   9,477.34 : 13,077.36 = 5,389 : x
2. Step 2: Convert to fraction form
   9,477.34/13,077.36 = 5,389/x
3. Step 3: Cross multiply
   9,477.34x = 13,077.36 × 5,389
4. Step 4: Simplify right side
   9,477.34x = 70,473,893.04
5. Step 5: Solve for x
   x = 70,473,893.04/9,477.34
6. Step 6: Final answer
   x = 7,436.04