Finding the Fourth Proportional to 13,315.86, 18,453.56 and 13,127.94

Step by Step Solution

1. Step 1: Write the proportion equation
   13,315.86 : 18,453.56 = 13,127.94 : x
2. Step 2: Convert to fraction form
   13,315.86/18,453.56 = 13,127.94/x
3. Step 3: Cross multiply
   13,315.86x = 18,453.56 × 13,127.94
4. Step 4: Simplify right side
   13,315.86x = 242,257,228.47
5. Step 5: Solve for x
   x = 242,257,228.47/13,315.86
6. Step 6: Final answer
   x = 18,193.13