Finding the Fourth Proportional to 31,715.87, 43,767.90 and 17,375.76

Step by Step Solution

1. Step 1: Write the proportion equation
   31,715.87 : 43,767.90 = 17,375.76 : x
2. Step 2: Convert to fraction form
   31,715.87/43,767.90 = 17,375.76/x
3. Step 3: Cross multiply
   31,715.87x = 43,767.90 × 17,375.76
4. Step 4: Simplify right side
   31,715.87x = 760,500,526.10
5. Step 5: Solve for x
   x = 760,500,526.10/31,715.87
6. Step 6: Final answer
   x = 23,978.55