Finding the Fourth Proportional to 9,109.02, 13,664.34 and 4,725.30

Step by Step Solution

1. Step 1: Write the proportion equation
   9,109.02 : 13,664.34 = 4,725.30 : x
2. Step 2: Convert to fraction form
   9,109.02/13,664.34 = 4,725.30/x
3. Step 3: Cross multiply
   9,109.02x = 13,664.34 × 4,725.30
4. Step 4: Simplify right side
   9,109.02x = 64,568,105.80
5. Step 5: Solve for x
   x = 64,568,105.80/9,109.02
6. Step 6: Final answer
   x = 7,088.37