Finding the Fourth Proportional to 11,931.57, 17,895.98 and 3,167.17

Step by Step Solution

1. Step 1: Write the proportion equation
   11,931.57 : 17,895.98 = 3,167.17 : x
2. Step 2: Convert to fraction form
   11,931.57/17,895.98 = 3,167.17/x
3. Step 3: Cross multiply
   11,931.57x = 17,895.98 × 3,167.17
4. Step 4: Simplify right side
   11,931.57x = 56,679,574.15
5. Step 5: Solve for x
   x = 56,679,574.15/11,931.57
6. Step 6: Final answer
   x = 4,750.39