Finding the Fourth Proportional to 13,369.05, 18,449.17 and 7,400.77

Step by Step Solution

1. Step 1: Write the proportion equation
   13,369.05 : 18,449.17 = 7,400.77 : x
2. Step 2: Convert to fraction form
   13,369.05/18,449.17 = 7,400.77/x
3. Step 3: Cross multiply
   13,369.05x = 18,449.17 × 7,400.77
4. Step 4: Simplify right side
   13,369.05x = 136,537,999.24
5. Step 5: Solve for x
   x = 136,537,999.24/13,369.05
6. Step 6: Final answer
   x = 10,212.99