Finding the Fourth Proportional to 11,859.15, 17,701.89 and 10,457.94

Step by Step Solution

1. Step 1: Write the proportion equation
   11,859.15 : 17,701.89 = 10,457.94 : x
2. Step 2: Convert to fraction form
   11,859.15/17,701.89 = 10,457.94/x
3. Step 3: Cross multiply
   11,859.15x = 17,701.89 × 10,457.94
4. Step 4: Simplify right side
   11,859.15x = 185,125,303.51
5. Step 5: Solve for x
   x = 185,125,303.51/11,859.15
6. Step 6: Final answer
   x = 15,610.33