Finding the Fourth Proportional to 11,603.72, 17,405.50 and 3,283.88

Step by Step Solution

1. Step 1: Write the proportion equation
   11,603.72 : 17,405.50 = 3,283.88 : x
2. Step 2: Convert to fraction form
   11,603.72/17,405.50 = 3,283.88/x
3. Step 3: Cross multiply
   11,603.72x = 17,405.50 × 3,283.88
4. Step 4: Simplify right side
   11,603.72x = 57,157,573.34
5. Step 5: Solve for x
   x = 57,157,573.34/11,603.72
6. Step 6: Final answer
   x = 4,925.80