Finding the Fourth Proportional to 13,442.90, 18,552.62 and 7,700.82

Step by Step Solution

1. Step 1: Write the proportion equation
   13,442.90 : 18,552.62 = 7,700.82 : x
2. Step 2: Convert to fraction form
   13,442.90/18,552.62 = 7,700.82/x
3. Step 3: Cross multiply
   13,442.90x = 18,552.62 × 7,700.82
4. Step 4: Simplify right side
   13,442.90x = 142,870,336.83
5. Step 5: Solve for x
   x = 142,870,336.83/13,442.90
6. Step 6: Final answer
   x = 10,627.94