Finding the Fourth Proportional to 11,645.42, 17,470.28 and 10,589.05

Step by Step Solution

1. Step 1: Write the proportion equation
   11,645.42 : 17,470.28 = 10,589.05 : x
2. Step 2: Convert to fraction form
   11,645.42/17,470.28 = 10,589.05/x
3. Step 3: Cross multiply
   11,645.42x = 17,470.28 × 10,589.05
4. Step 4: Simplify right side
   11,645.42x = 184,993,618.47
5. Step 5: Solve for x
   x = 184,993,618.47/11,645.42
6. Step 6: Final answer
   x = 15,885.52