Finding the Fourth Proportional to 31,810.68, 43,900.20 and 17,663.58

Step by Step Solution

1. Step 1: Write the proportion equation
   31,810.68 : 43,900.20 = 17,663.58 : x
2. Step 2: Convert to fraction form
   31,810.68/43,900.20 = 17,663.58/x
3. Step 3: Cross multiply
   31,810.68x = 43,900.20 × 17,663.58
4. Step 4: Simplify right side
   31,810.68x = 775,434,694.72
5. Step 5: Solve for x
   x = 775,434,694.72/31,810.68
6. Step 6: Final answer
   x = 24,376.55