Finding the Fourth Proportional to 12,369.72, 17,053.02 and 10,473.78

Step by Step Solution

1. Step 1: Write the proportion equation
   12,369.72 : 17,053.02 = 10,473.78 : x
2. Step 2: Convert to fraction form
   12,369.72/17,053.02 = 10,473.78/x
3. Step 3: Cross multiply
   12,369.72x = 17,053.02 × 10,473.78
4. Step 4: Simplify right side
   12,369.72x = 178,609,579.82
5. Step 5: Solve for x
   x = 178,609,579.82/12,369.72
6. Step 6: Final answer
   x = 14,439.26