Finding the Fourth Proportional to 11,561.00, 17,345.39 and 3,664.80

Step by Step Solution

1. Step 1: Write the proportion equation
   11,561.00 : 17,345.39 = 3,664.80 : x
2. Step 2: Convert to fraction form
   11,561.00/17,345.39 = 3,664.80/x
3. Step 3: Cross multiply
   11,561.00x = 17,345.39 × 3,664.80
4. Step 4: Simplify right side
   11,561.00x = 63,567,366.95
5. Step 5: Solve for x
   x = 63,567,366.95/11,561.00
6. Step 6: Final answer
   x = 5,498.43