Finding the Fourth Proportional to 8,760.00, 13,139.79 and 2,520.03

Step by Step Solution

1. Step 1: Write the proportion equation
   8,760.00 : 13,139.79 = 2,520.03 : x
2. Step 2: Convert to fraction form
   8,760.00/13,139.79 = 2,520.03/x
3. Step 3: Cross multiply
   8,760.00x = 13,139.79 × 2,520.03
4. Step 4: Simplify right side
   8,760.00x = 33,112,599.29
5. Step 5: Solve for x
   x = 33,112,599.29/8,760.00
6. Step 6: Final answer
   x = 3,779.98