Finding the Fourth Proportional to 9,547.50, 13,175.55 and 5,357.10

Step by Step Solution

1. Step 1: Write the proportion equation
   9,547.50 : 13,175.55 = 5,357.10 : x
2. Step 2: Convert to fraction form
   9,547.50/13,175.55 = 5,357.10/x
3. Step 3: Cross multiply
   9,547.50x = 13,175.55 × 5,357.10
4. Step 4: Simplify right side
   9,547.50x = 70,582,738.91
5. Step 5: Solve for x
   x = 70,582,738.91/9,547.50
6. Step 6: Final answer
   x = 7,392.80