Finding the Fourth Proportional to 11,417.58, 15,759.83 and 7,386.21

Step by Step Solution

1. Step 1: Write the proportion equation
   11,417.58 : 15,759.83 = 7,386.21 : x
2. Step 2: Convert to fraction form
   11,417.58/15,759.83 = 7,386.21/x
3. Step 3: Cross multiply
   11,417.58x = 15,759.83 × 7,386.21
4. Step 4: Simplify right side
   11,417.58x = 116,405,432.41
5. Step 5: Solve for x
   x = 116,405,432.41/11,417.58
6. Step 6: Final answer
   x = 10,195.28