Finding the Fourth Proportional to 11,641.59, 17,383.07 and 10,983.74

Step by Step Solution

1. Step 1: Write the proportion equation
   11,641.59 : 17,383.07 = 10,983.74 : x
2. Step 2: Convert to fraction form
   11,641.59/17,383.07 = 10,983.74/x
3. Step 3: Cross multiply
   11,641.59x = 17,383.07 × 10,983.74
4. Step 4: Simplify right side
   11,641.59x = 190,931,061.83
5. Step 5: Solve for x
   x = 190,931,061.83/11,641.59
6. Step 6: Final answer
   x = 16,400.77