Finding the Fourth Proportional to 13,460.09, 18,572.71 and 7,491.61

Step by Step Solution

1. Step 1: Write the proportion equation
   13,460.09 : 18,572.71 = 7,491.61 : x
2. Step 2: Convert to fraction form
   13,460.09/18,572.71 = 7,491.61/x
3. Step 3: Cross multiply
   13,460.09x = 18,572.71 × 7,491.61
4. Step 4: Simplify right side
   13,460.09x = 139,139,369.64
5. Step 5: Solve for x
   x = 139,139,369.64/13,460.09
6. Step 6: Final answer
   x = 10,337.18