Finding the Fourth Proportional to 12,927.12, 17,849.34 and 9,398.76

Step by Step Solution

1. Step 1: Write the proportion equation
   12,927.12 : 17,849.34 = 9,398.76 : x
2. Step 2: Convert to fraction form
   12,927.12/17,849.34 = 9,398.76/x
3. Step 3: Cross multiply
   12,927.12x = 17,849.34 × 9,398.76
4. Step 4: Simplify right side
   12,927.12x = 167,761,662.82
5. Step 5: Solve for x
   x = 167,761,662.82/12,927.12
6. Step 6: Final answer
   x = 12,977.50