Finding the Fourth Proportional to 13,114.55, 18,098.16 and 7,809.59

Step by Step Solution

1. Step 1: Write the proportion equation
   13,114.55 : 18,098.16 = 7,809.59 : x
2. Step 2: Convert to fraction form
   13,114.55/18,098.16 = 7,809.59/x
3. Step 3: Cross multiply
   13,114.55x = 18,098.16 × 7,809.59
4. Step 4: Simplify right side
   13,114.55x = 141,339,209.35
5. Step 5: Solve for x
   x = 141,339,209.35/13,114.55
6. Step 6: Final answer
   x = 10,777.28