Finding the Fourth Proportional to 13,165.53, 18,168.06 and 7,498.77

Step by Step Solution

1. Step 1: Write the proportion equation
   13,165.53 : 18,168.06 = 7,498.77 : x
2. Step 2: Convert to fraction form
   13,165.53/18,168.06 = 7,498.77/x
3. Step 3: Cross multiply
   13,165.53x = 18,168.06 × 7,498.77
4. Step 4: Simplify right side
   13,165.53x = 136,238,103.29
5. Step 5: Solve for x
   x = 136,238,103.29/13,165.53
6. Step 6: Final answer
   x = 10,348.09