Finding the Fourth Proportional to 12,429.48, 17,113.30 and 10,536.92

Step by Step Solution

1. Step 1: Write the proportion equation
   12,429.48 : 17,113.30 = 10,536.92 : x
2. Step 2: Convert to fraction form
   12,429.48/17,113.30 = 10,536.92/x
3. Step 3: Cross multiply
   12,429.48x = 17,113.30 × 10,536.92
4. Step 4: Simplify right side
   12,429.48x = 180,321,473.04
5. Step 5: Solve for x
   x = 180,321,473.04/12,429.48
6. Step 6: Final answer
   x = 14,507.56