Finding the Fourth Proportional to 31,155.64, 42,995.52 and 17,008.59

Step by Step Solution

1. Step 1: Write the proportion equation
   31,155.64 : 42,995.52 = 17,008.59 : x
2. Step 2: Convert to fraction form
   31,155.64/42,995.52 = 17,008.59/x
3. Step 3: Cross multiply
   31,155.64x = 42,995.52 × 17,008.59
4. Step 4: Simplify right side
   31,155.64x = 731,293,171.52
5. Step 5: Solve for x
   x = 731,293,171.52/31,155.64
6. Step 6: Final answer
   x = 23,472.26