Finding the Fourth Proportional to 11,900.25, 17,852.91 and 3,579.57

Step by Step Solution

1. Step 1: Write the proportion equation
   11,900.25 : 17,852.91 = 3,579.57 : x
2. Step 2: Convert to fraction form
   11,900.25/17,852.91 = 3,579.57/x
3. Step 3: Cross multiply
   11,900.25x = 17,852.91 × 3,579.57
4. Step 4: Simplify right side
   11,900.25x = 63,905,741.05
5. Step 5: Solve for x
   x = 63,905,741.05/11,900.25
6. Step 6: Final answer
   x = 5,370.12