Finding the Fourth Proportional to 11,641.53, 17,455.69 and 10,649.69

Step by Step Solution

1. Step 1: Write the proportion equation
   11,641.53 : 17,455.69 = 10,649.69 : x
2. Step 2: Convert to fraction form
   11,641.53/17,455.69 = 10,649.69/x
3. Step 3: Cross multiply
   11,641.53x = 17,455.69 × 10,649.69
4. Step 4: Simplify right side
   11,641.53x = 185,897,546.71
5. Step 5: Solve for x
   x = 185,897,546.71/11,641.53
6. Step 6: Final answer
   x = 15,968.48