Finding the Fourth Proportional to 8,740.45, 13,111.20 and 2,499.99

Step by Step Solution

1. Step 1: Write the proportion equation
   8,740.45 : 13,111.20 = 2,499.99 : x
2. Step 2: Convert to fraction form
   8,740.45/13,111.20 = 2,499.99/x
3. Step 3: Cross multiply
   8,740.45x = 13,111.20 × 2,499.99
4. Step 4: Simplify right side
   8,740.45x = 32,777,868.89
5. Step 5: Solve for x
   x = 32,777,868.89/8,740.45
6. Step 6: Final answer
   x = 3,750.14