Finding the Fourth Proportional to 13,449.51, 18,562.41 and 7,784.37

Step by Step Solution

1. Step 1: Write the proportion equation
   13,449.51 : 18,562.41 = 7,784.37 : x
2. Step 2: Convert to fraction form
   13,449.51/18,562.41 = 7,784.37/x
3. Step 3: Cross multiply
   13,449.51x = 18,562.41 × 7,784.37
4. Step 4: Simplify right side
   13,449.51x = 144,496,667.53
5. Step 5: Solve for x
   x = 144,496,667.53/13,449.51
6. Step 6: Final answer
   x = 10,743.64