Finding the Fourth Proportional to 31,084.65, 42,899.90 and 17,656.74

Step by Step Solution

1. Step 1: Write the proportion equation
   31,084.65 : 42,899.90 = 17,656.74 : x
2. Step 2: Convert to fraction form
   31,084.65/42,899.90 = 17,656.74/x
3. Step 3: Cross multiply
   31,084.65x = 42,899.90 × 17,656.74
4. Step 4: Simplify right side
   31,084.65x = 757,472,292.04
5. Step 5: Solve for x
   x = 757,472,292.04/31,084.65
6. Step 6: Final answer
   x = 24,368.05