Finding the Fourth Proportional to 13,461.18, 18,576.42 and 7,492.72

Step by Step Solution

1. Step 1: Write the proportion equation
   13,461.18 : 18,576.42 = 7,492.72 : x
2. Step 2: Convert to fraction form
   13,461.18/18,576.42 = 7,492.72/x
3. Step 3: Cross multiply
   13,461.18x = 18,576.42 × 7,492.72
4. Step 4: Simplify right side
   13,461.18x = 139,187,884.93
5. Step 5: Solve for x
   x = 139,187,884.93/13,461.18
6. Step 6: Final answer
   x = 10,339.95