Finding the Fourth Proportional to 8,739.15, 13,106.52 and 2,499.19

Step by Step Solution

1. Step 1: Write the proportion equation
   8,739.15 : 13,106.52 = 2,499.19 : x
2. Step 2: Convert to fraction form
   8,739.15/13,106.52 = 2,499.19/x
3. Step 3: Cross multiply
   8,739.15x = 13,106.52 × 2,499.19
4. Step 4: Simplify right side
   8,739.15x = 32,755,683.72
5. Step 5: Solve for x
   x = 32,755,683.72/8,739.15
6. Step 6: Final answer
   x = 3,748.15