Finding the Fourth Proportional to 13,697.34, 18,902.18 and 7,730.94

Step by Step Solution

1. Step 1: Write the proportion equation
   13,697.34 : 18,902.18 = 7,730.94 : x
2. Step 2: Convert to fraction form
   13,697.34/18,902.18 = 7,730.94/x
3. Step 3: Cross multiply
   13,697.34x = 18,902.18 × 7,730.94
4. Step 4: Simplify right side
   13,697.34x = 146,131,619.45
5. Step 5: Solve for x
   x = 146,131,619.45/13,697.34
6. Step 6: Final answer
   x = 10,668.61