Finding the Fourth Proportional to 31,303.56, 46,960.81 and 13,772.94

Step by Step Solution

1. Step 1: Write the proportion equation
   31,303.56 : 46,960.81 = 13,772.94 : x
2. Step 2: Convert to fraction form
   31,303.56/46,960.81 = 13,772.94/x
3. Step 3: Cross multiply
   31,303.56x = 46,960.81 × 13,772.94
4. Step 4: Simplify right side
   31,303.56x = 646,788,242.72
5. Step 5: Solve for x
   x = 646,788,242.72/31,303.56
6. Step 6: Final answer
   x = 20,661.81