Finding the Fourth Proportional to 13,393.69, 18,484.31 and 7,426.51

Step by Step Solution

1. Step 1: Write the proportion equation
   13,393.69 : 18,484.31 = 7,426.51 : x
2. Step 2: Convert to fraction form
   13,393.69/18,484.31 = 7,426.51/x
3. Step 3: Cross multiply
   13,393.69x = 18,484.31 × 7,426.51
4. Step 4: Simplify right side
   13,393.69x = 137,273,885.41
5. Step 5: Solve for x
   x = 137,273,885.41/13,393.69
6. Step 6: Final answer
   x = 10,249.15