Finding the Fourth Proportional to 13,401.48, 18,492.45 and 7,736.13

Step by Step Solution

1. Step 1: Write the proportion equation
   13,401.48 : 18,492.45 = 7,736.13 : x
2. Step 2: Convert to fraction form
   13,401.48/18,492.45 = 7,736.13/x
3. Step 3: Cross multiply
   13,401.48x = 18,492.45 × 7,736.13
4. Step 4: Simplify right side
   13,401.48x = 143,059,997.22
5. Step 5: Solve for x
   x = 143,059,997.22/13,401.48
6. Step 6: Final answer
   x = 10,674.94