Finding the Fourth Proportional to 13,459.82, 18,573.98 and 7,491.47

Step by Step Solution

1. Step 1: Write the proportion equation
   13,459.82 : 18,573.98 = 7,491.47 : x
2. Step 2: Convert to fraction form
   13,459.82/18,573.98 = 7,491.47/x
3. Step 3: Cross multiply
   13,459.82x = 18,573.98 × 7,491.47
4. Step 4: Simplify right side
   13,459.82x = 139,146,283.62
5. Step 5: Solve for x
   x = 139,146,283.62/13,459.82
6. Step 6: Final answer
   x = 10,337.90