Finding the Fourth Proportional to 12,333.30, 17,015.67 and 8,555.10

Step by Step Solution

1. Step 1: Write the proportion equation
   12,333.30 : 17,015.67 = 8,555.10 : x
2. Step 2: Convert to fraction form
   12,333.30/17,015.67 = 8,555.10/x
3. Step 3: Cross multiply
   12,333.30x = 17,015.67 × 8,555.10
4. Step 4: Simplify right side
   12,333.30x = 145,570,758.42
5. Step 5: Solve for x
   x = 145,570,758.42/12,333.30
6. Step 6: Final answer
   x = 11,803.07