Finding the Fourth Proportional to 13,620.02, 18,796.84 and 7,653.15

Step by Step Solution

1. Step 1: Write the proportion equation
   13,620.02 : 18,796.84 = 7,653.15 : x
2. Step 2: Convert to fraction form
   13,620.02/18,796.84 = 7,653.15/x
3. Step 3: Cross multiply
   13,620.02x = 18,796.84 × 7,653.15
4. Step 4: Simplify right side
   13,620.02x = 143,855,016.91
5. Step 5: Solve for x
   x = 143,855,016.91/13,620.02
6. Step 6: Final answer
   x = 10,562.03