Finding the Fourth Proportional to 12,499.37, 18,715.01 and 8,796.05

Step by Step Solution

1. Step 1: Write the proportion equation
   12,499.37 : 18,715.01 = 8,796.05 : x
2. Step 2: Convert to fraction form
   12,499.37/18,715.01 = 8,796.05/x
3. Step 3: Cross multiply
   12,499.37x = 18,715.01 × 8,796.05
4. Step 4: Simplify right side
   12,499.37x = 164,618,185.70
5. Step 5: Solve for x
   x = 164,618,185.70/12,499.37
6. Step 6: Final answer
   x = 13,170.12