Finding the Fourth Proportional to 30,898.72, 42,642.62 and 17,470.25

Step by Step Solution

1. Step 1: Write the proportion equation
   30,898.72 : 42,642.62 = 17,470.25 : x
2. Step 2: Convert to fraction form
   30,898.72/42,642.62 = 17,470.25/x
3. Step 3: Cross multiply
   30,898.72x = 42,642.62 × 17,470.25
4. Step 4: Simplify right side
   30,898.72x = 744,977,232.06
5. Step 5: Solve for x
   x = 744,977,232.06/30,898.72
6. Step 6: Final answer
   x = 24,110.29