Finding the Fourth Proportional to 13,095.18, 18,072.90 and 7,718.82

Step by Step Solution

1. Step 1: Write the proportion equation
   13,095.18 : 18,072.90 = 7,718.82 : x
2. Step 2: Convert to fraction form
   13,095.18/18,072.90 = 7,718.82/x
3. Step 3: Cross multiply
   13,095.18x = 18,072.90 × 7,718.82
4. Step 4: Simplify right side
   13,095.18x = 139,501,461.98
5. Step 5: Solve for x
   x = 139,501,461.98/13,095.18
6. Step 6: Final answer
   x = 10,652.89