Finding the Fourth Proportional to 9,099.81, 13,641.59 and 3,551.86

Step by Step Solution

1. Step 1: Write the proportion equation
   9,099.81 : 13,641.59 = 3,551.86 : x
2. Step 2: Convert to fraction form
   9,099.81/13,641.59 = 3,551.86/x
3. Step 3: Cross multiply
   9,099.81x = 13,641.59 × 3,551.86
4. Step 4: Simplify right side
   9,099.81x = 48,453,017.86
5. Step 5: Solve for x
   x = 48,453,017.86/9,099.81
6. Step 6: Final answer
   x = 5,324.62