Finding the Fourth Proportional to 10,812.51, 16,217.37 and 3,417.72

Step by Step Solution

1. Step 1: Write the proportion equation
   10,812.51 : 16,217.37 = 3,417.72 : x
2. Step 2: Convert to fraction form
   10,812.51/16,217.37 = 3,417.72/x
3. Step 3: Cross multiply
   10,812.51x = 16,217.37 × 3,417.72
4. Step 4: Simplify right side
   10,812.51x = 55,426,395.66
5. Step 5: Solve for x
   x = 55,426,395.66/10,812.51
6. Step 6: Final answer
   x = 5,126.14