Finding the Fourth Proportional to 10,776.78, 14,871.81 and 6,061.06

Step by Step Solution

1. Step 1: Write the proportion equation
   10,776.78 : 14,871.81 = 6,061.06 : x
2. Step 2: Convert to fraction form
   10,776.78/14,871.81 = 6,061.06/x
3. Step 3: Cross multiply
   10,776.78x = 14,871.81 × 6,061.06
4. Step 4: Simplify right side
   10,776.78x = 90,139,001.92
5. Step 5: Solve for x
   x = 90,139,001.92/10,776.78
6. Step 6: Final answer
   x = 8,364.19