Finding the Fourth Proportional to 13,414.51, 18,507.32 and 7,749.10

Step by Step Solution

1. Step 1: Write the proportion equation
   13,414.51 : 18,507.32 = 7,749.10 : x
2. Step 2: Convert to fraction form
   13,414.51/18,507.32 = 7,749.10/x
3. Step 3: Cross multiply
   13,414.51x = 18,507.32 × 7,749.10
4. Step 4: Simplify right side
   13,414.51x = 143,415,086.86
5. Step 5: Solve for x
   x = 143,415,086.86/13,414.51
6. Step 6: Final answer
   x = 10,691.04