Finding the Fourth Proportional to 13,411.86, 18,508.00 and 7,362.09

Step by Step Solution

1. Step 1: Write the proportion equation
   13,411.86 : 18,508.00 = 7,362.09 : x
2. Step 2: Convert to fraction form
   13,411.86/18,508.00 = 7,362.09/x
3. Step 3: Cross multiply
   13,411.86x = 18,508.00 × 7,362.09
4. Step 4: Simplify right side
   13,411.86x = 136,257,543.31
5. Step 5: Solve for x
   x = 136,257,543.31/13,411.86
6. Step 6: Final answer
   x = 10,159.48