Finding the Fourth Proportional to 13,402.75, 18,495.81 and 7,814.83

Step by Step Solution

1. Step 1: Write the proportion equation
   13,402.75 : 18,495.81 = 7,814.83 : x
2. Step 2: Convert to fraction form
   13,402.75/18,495.81 = 7,814.83/x
3. Step 3: Cross multiply
   13,402.75x = 18,495.81 × 7,814.83
4. Step 4: Simplify right side
   13,402.75x = 144,541,610.86
5. Step 5: Solve for x
   x = 144,541,610.86/13,402.75
6. Step 6: Final answer
   x = 10,784.47