Finding the Fourth Proportional to 11,003.74, 16,507.91 and 3,607.61

Step by Step Solution

1. Step 1: Write the proportion equation
   11,003.74 : 16,507.91 = 3,607.61 : x
2. Step 2: Convert to fraction form
   11,003.74/16,507.91 = 3,607.61/x
3. Step 3: Cross multiply
   11,003.74x = 16,507.91 × 3,607.61
4. Step 4: Simplify right side
   11,003.74x = 59,554,124.43
5. Step 5: Solve for x
   x = 59,554,124.43/11,003.74
6. Step 6: Final answer
   x = 5,412.17