Finding the Fourth Proportional to 13,090.49, 18,063.12 and 7,783.37

Step by Step Solution

1. Step 1: Write the proportion equation
   13,090.49 : 18,063.12 = 7,783.37 : x
2. Step 2: Convert to fraction form
   13,090.49/18,063.12 = 7,783.37/x
3. Step 3: Cross multiply
   13,090.49x = 18,063.12 × 7,783.37
4. Step 4: Simplify right side
   13,090.49x = 140,591,946.31
5. Step 5: Solve for x
   x = 140,591,946.31/13,090.49
6. Step 6: Final answer
   x = 10,740.01