Finding the Fourth Proportional to 12,061.80, 18,095.76 and 5,040.60

Step by Step Solution

1. Step 1: Write the proportion equation
   12,061.80 : 18,095.76 = 5,040.60 : x
2. Step 2: Convert to fraction form
   12,061.80/18,095.76 = 5,040.60/x
3. Step 3: Cross multiply
   12,061.80x = 18,095.76 × 5,040.60
4. Step 4: Simplify right side
   12,061.80x = 91,213,487.86
5. Step 5: Solve for x
   x = 91,213,487.86/12,061.80
6. Step 6: Final answer
   x = 7,562.18