Finding the Fourth Proportional to 10,777.65, 16,164.15 and 3,381.15

Step by Step Solution

1. Step 1: Write the proportion equation
   10,777.65 : 16,164.15 = 3,381.15 : x
2. Step 2: Convert to fraction form
   10,777.65/16,164.15 = 3,381.15/x
3. Step 3: Cross multiply
   10,777.65x = 16,164.15 × 3,381.15
4. Step 4: Simplify right side
   10,777.65x = 54,653,415.77
5. Step 5: Solve for x
   x = 54,653,415.77/10,777.65
6. Step 6: Final answer
   x = 5,071.00