Finding the Fourth Proportional to 12,995.12, 19,484.04 and 7,154.48

Step by Step Solution

1. Step 1: Write the proportion equation
   12,995.12 : 19,484.04 = 7,154.48 : x
2. Step 2: Convert to fraction form
   12,995.12/19,484.04 = 7,154.48/x
3. Step 3: Cross multiply
   12,995.12x = 19,484.04 × 7,154.48
4. Step 4: Simplify right side
   12,995.12x = 139,398,174.50
5. Step 5: Solve for x
   x = 139,398,174.50/12,995.12
6. Step 6: Final answer
   x = 10,726.96