Finding the Fourth Proportional to 30,900.63, 42,640.25 and 17,470.02

Step by Step Solution

1. Step 1: Write the proportion equation
   30,900.63 : 42,640.25 = 17,470.02 : x
2. Step 2: Convert to fraction form
   30,900.63/42,640.25 = 17,470.02/x
3. Step 3: Cross multiply
   30,900.63x = 42,640.25 × 17,470.02
4. Step 4: Simplify right side
   30,900.63x = 744,925,932.95
5. Step 5: Solve for x
   x = 744,925,932.95/30,900.63
6. Step 6: Final answer
   x = 24,107.14