Finding the Fourth Proportional to 9,370.02, 12,929.31 and 5,389.68

Step by Step Solution

1. Step 1: Write the proportion equation
   9,370.02 : 12,929.31 = 5,389.68 : x
2. Step 2: Convert to fraction form
   9,370.02/12,929.31 = 5,389.68/x
3. Step 3: Cross multiply
   9,370.02x = 12,929.31 × 5,389.68
4. Step 4: Simplify right side
   9,370.02x = 69,684,843.52
5. Step 5: Solve for x
   x = 69,684,843.52/9,370.02
6. Step 6: Final answer
   x = 7,437.00