Finding the Fourth Proportional to 13,091.49, 18,064.50 and 7,784.37

Step by Step Solution

1. Step 1: Write the proportion equation
   13,091.49 : 18,064.50 = 7,784.37 : x
2. Step 2: Convert to fraction form
   13,091.49/18,064.50 = 7,784.37/x
3. Step 3: Cross multiply
   13,091.49x = 18,064.50 × 7,784.37
4. Step 4: Simplify right side
   13,091.49x = 140,620,751.87
5. Step 5: Solve for x
   x = 140,620,751.87/13,091.49
6. Step 6: Final answer
   x = 10,741.39