Finding the Fourth Proportional to 9,547.42, 13,175.40 and 5,355.67

Step by Step Solution

1. Step 1: Write the proportion equation
   9,547.42 : 13,175.40 = 5,355.67 : x
2. Step 2: Convert to fraction form
   9,547.42/13,175.40 = 5,355.67/x
3. Step 3: Cross multiply
   9,547.42x = 13,175.40 × 5,355.67
4. Step 4: Simplify right side
   9,547.42x = 70,563,094.52
5. Step 5: Solve for x
   x = 70,563,094.52/9,547.42
6. Step 6: Final answer
   x = 7,390.80