Finding the Fourth Proportional to 13,339.72, 18,411.06 and 7,753.96

Step by Step Solution

1. Step 1: Write the proportion equation
   13,339.72 : 18,411.06 = 7,753.96 : x
2. Step 2: Convert to fraction form
   13,339.72/18,411.06 = 7,753.96/x
3. Step 3: Cross multiply
   13,339.72x = 18,411.06 × 7,753.96
4. Step 4: Simplify right side
   13,339.72x = 142,758,622.80
5. Step 5: Solve for x
   x = 142,758,622.80/13,339.72
6. Step 6: Final answer
   x = 10,701.77