Finding the Fourth Proportional to 9,109.10, 13,667.91 and 3,561.01

Step by Step Solution

1. Step 1: Write the proportion equation
   9,109.10 : 13,667.91 = 3,561.01 : x
2. Step 2: Convert to fraction form
   9,109.10/13,667.91 = 3,561.01/x
3. Step 3: Cross multiply
   9,109.10x = 13,667.91 × 3,561.01
4. Step 4: Simplify right side
   9,109.10x = 48,671,478.04
5. Step 5: Solve for x
   x = 48,671,478.04/9,109.10
6. Step 6: Final answer
   x = 5,343.17