Finding the Fourth Proportional to 13,048.79, 19,573.89 and 3,689.54

Step by Step Solution

1. Step 1: Write the proportion equation
   13,048.79 : 19,573.89 = 3,689.54 : x
2. Step 2: Convert to fraction form
   13,048.79/19,573.89 = 3,689.54/x
3. Step 3: Cross multiply
   13,048.79x = 19,573.89 × 3,689.54
4. Step 4: Simplify right side
   13,048.79x = 72,218,650.11
5. Step 5: Solve for x
   x = 72,218,650.11/13,048.79
6. Step 6: Final answer
   x = 5,534.51