Finding the Fourth Proportional to 13,092.49, 18,065.88 and 7,785.37

Step by Step Solution

1. Step 1: Write the proportion equation
   13,092.49 : 18,065.88 = 7,785.37 : x
2. Step 2: Convert to fraction form
   13,092.49/18,065.88 = 7,785.37/x
3. Step 3: Cross multiply
   13,092.49x = 18,065.88 × 7,785.37
4. Step 4: Simplify right side
   13,092.49x = 140,649,560.18
5. Step 5: Solve for x
   x = 140,649,560.18/13,092.49
6. Step 6: Final answer
   x = 10,742.77