Finding the Fourth Proportional to 11,923.59, 17,885.56 and 3,603.68

Step by Step Solution

1. Step 1: Write the proportion equation
   11,923.59 : 17,885.56 = 3,603.68 : x
2. Step 2: Convert to fraction form
   11,923.59/17,885.56 = 3,603.68/x
3. Step 3: Cross multiply
   11,923.59x = 17,885.56 × 3,603.68
4. Step 4: Simplify right side
   11,923.59x = 64,453,834.86
5. Step 5: Solve for x
   x = 64,453,834.86/11,923.59
6. Step 6: Final answer
   x = 5,405.57