Finding the Fourth Proportional to 31,570.72, 43,565.76 and 17,423.68

Step by Step Solution

1. Step 1: Write the proportion equation
   31,570.72 : 43,565.76 = 17,423.68 : x
2. Step 2: Convert to fraction form
   31,570.72/43,565.76 = 17,423.68/x
3. Step 3: Cross multiply
   31,570.72x = 43,565.76 × 17,423.68
4. Step 4: Simplify right side
   31,570.72x = 759,075,861.20
5. Step 5: Solve for x
   x = 759,075,861.20/31,570.72
6. Step 6: Final answer
   x = 24,043.67