Finding the Fourth Proportional to 11,018.34, 16,528.46 and 3,120.93

Step by Step Solution

1. Step 1: Write the proportion equation
   11,018.34 : 16,528.46 = 3,120.93 : x
2. Step 2: Convert to fraction form
   11,018.34/16,528.46 = 3,120.93/x
3. Step 3: Cross multiply
   11,018.34x = 16,528.46 × 3,120.93
4. Step 4: Simplify right side
   11,018.34x = 51,584,151.06
5. Step 5: Solve for x
   x = 51,584,151.06/11,018.34
6. Step 6: Final answer
   x = 4,681.66