Finding the Fourth Proportional to 9,018.16, 13,521.12 and 3,174

Step by Step Solution

1. Step 1: Write the proportion equation
   9,018.16 : 13,521.12 = 3,174 : x
2. Step 2: Convert to fraction form
   9,018.16/13,521.12 = 3,174/x
3. Step 3: Cross multiply
   9,018.16x = 13,521.12 × 3,174
4. Step 4: Simplify right side
   9,018.16x = 42,916,034.88
5. Step 5: Solve for x
   x = 42,916,034.88/9,018.16
6. Step 6: Final answer
   x = 4,758.85