Finding the Fourth Proportional to 10,914.02, 16,368.78 and 3,121.10

Step by Step Solution

1. Step 1: Write the proportion equation
   10,914.02 : 16,368.78 = 3,121.10 : x
2. Step 2: Convert to fraction form
   10,914.02/16,368.78 = 3,121.10/x
3. Step 3: Cross multiply
   10,914.02x = 16,368.78 × 3,121.10
4. Step 4: Simplify right side
   10,914.02x = 51,088,599.26
5. Step 5: Solve for x
   x = 51,088,599.26/10,914.02
6. Step 6: Final answer
   x = 4,681.01