Finding the Fourth Proportional to 13,061.62, 18,027.65 and 7,759.38

Step by Step Solution

1. Step 1: Write the proportion equation
   13,061.62 : 18,027.65 = 7,759.38 : x
2. Step 2: Convert to fraction form
   13,061.62/18,027.65 = 7,759.38/x
3. Step 3: Cross multiply
   13,061.62x = 18,027.65 × 7,759.38
4. Step 4: Simplify right side
   13,061.62x = 139,883,386.86
5. Step 5: Solve for x
   x = 139,883,386.86/13,061.62
6. Step 6: Final answer
   x = 10,709.50