Finding the Fourth Proportional to 31,091.56, 42,904.99 and 17,662.76

Step by Step Solution

1. Step 1: Write the proportion equation
   31,091.56 : 42,904.99 = 17,662.76 : x
2. Step 2: Convert to fraction form
   31,091.56/42,904.99 = 17,662.76/x
3. Step 3: Cross multiply
   31,091.56x = 42,904.99 × 17,662.76
4. Step 4: Simplify right side
   31,091.56x = 757,820,541.17
5. Step 5: Solve for x
   x = 757,820,541.17/31,091.56
6. Step 6: Final answer
   x = 24,373.83