Finding the Fourth Proportional to 30,901.51, 42,643.59 and 17,472.34

Step by Step Solution

1. Step 1: Write the proportion equation
   30,901.51 : 42,643.59 = 17,472.34 : x
2. Step 2: Convert to fraction form
   30,901.51/42,643.59 = 17,472.34/x
3. Step 3: Cross multiply
   30,901.51x = 42,643.59 × 17,472.34
4. Step 4: Simplify right side
   30,901.51x = 745,083,303.30
5. Step 5: Solve for x
   x = 745,083,303.30/30,901.51
6. Step 6: Final answer
   x = 24,111.55