Finding the Fourth Proportional to 11,925, 17,881.71 and 3,603.42

Step by Step Solution

1. Step 1: Write the proportion equation
   11,925 : 17,881.71 = 3,603.42 : x
2. Step 2: Convert to fraction form
   11,925/17,881.71 = 3,603.42/x
3. Step 3: Cross multiply
   11,925x = 17,881.71 × 3,603.42
4. Step 4: Simplify right side
   11,925x = 64,435,311.45
5. Step 5: Solve for x
   x = 64,435,311.45/11,925
6. Step 6: Final answer
   x = 5,403.38