Finding the Fourth Proportional to 13,061.80, 18,027.32 and 7,396.84

Step by Step Solution

1. Step 1: Write the proportion equation
   13,061.80 : 18,027.32 = 7,396.84 : x
2. Step 2: Convert to fraction form
   13,061.80/18,027.32 = 7,396.84/x
3. Step 3: Cross multiply
   13,061.80x = 18,027.32 × 7,396.84
4. Step 4: Simplify right side
   13,061.80x = 133,345,201.67
5. Step 5: Solve for x
   x = 133,345,201.67/13,061.80
6. Step 6: Final answer
   x = 10,208.79