Finding the Fourth Proportional to 11,499.59, 15,833.05 and 10,448.51

Step by Step Solution

1. Step 1: Write the proportion equation
   11,499.59 : 15,833.05 = 10,448.51 : x
2. Step 2: Convert to fraction form
   11,499.59/15,833.05 = 10,448.51/x
3. Step 3: Cross multiply
   11,499.59x = 15,833.05 × 10,448.51
4. Step 4: Simplify right side
   11,499.59x = 165,431,675.97
5. Step 5: Solve for x
   x = 165,431,675.97/11,499.59
6. Step 6: Final answer
   x = 14,385.87