Finding the Fourth Proportional to 9,386.34, 12,955.91 and 5,410.25

Step by Step Solution

1. Step 1: Write the proportion equation
   9,386.34 : 12,955.91 = 5,410.25 : x
2. Step 2: Convert to fraction form
   9,386.34/12,955.91 = 5,410.25/x
3. Step 3: Cross multiply
   9,386.34x = 12,955.91 × 5,410.25
4. Step 4: Simplify right side
   9,386.34x = 70,094,712.08
5. Step 5: Solve for x
   x = 70,094,712.08/9,386.34
6. Step 6: Final answer
   x = 7,467.74