Finding the Fourth Proportional to 10,003.55, 13,788.06 and 8,576.53

Step by Step Solution

1. Step 1: Write the proportion equation
   10,003.55 : 13,788.06 = 8,576.53 : x
2. Step 2: Convert to fraction form
   10,003.55/13,788.06 = 8,576.53/x
3. Step 3: Cross multiply
   10,003.55x = 13,788.06 × 8,576.53
4. Step 4: Simplify right side
   10,003.55x = 118,253,643.60
5. Step 5: Solve for x
   x = 118,253,643.60/10,003.55
6. Step 6: Final answer
   x = 11,821.17